DISCOVER CARD MASTER TRUST I
424B3, 1999-10-15
ASSET-BACKED SECURITIES
Previous: DISCOVER CARD MASTER TRUST I, 8-K, 1999-10-15
Next: VALUESTAR CORP, DEF 14A, 1999-10-15



<PAGE>   1

PROSPECTUS SUPPLEMENT                          This Prospectus Supplement, filed
FOR THE PERIOD ENDING                          pursuant to Rule 424(b)(3),
SEPTEMBER 30, 1999 TO                          relates to Registration Statement
PROSPECTUS DATED                               33-71504-01 and the Prospectus
NOVEMBER 16, 1993                              dated November 16, 1993



                       SECURITIES AND EXCHANGE COMMISSION
                             450 Fifth Street, N.W.
                             Washington, D. C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

       Date of Report (Date of earliest event reported): October 15, 1999

                          DISCOVER CARD MASTER TRUST I
                          -----------------------------
             (Exact name of registrant as specified in its charter)

Delaware                     0-23108                     Not Applicable
- --------                     -------                     --------------
(State of                    (Commission                 (IRS Employer
organization)                File Number)                Identification No.)


c/o Greenwood Trust Company
12 Read's Way
New Castle, Delaware                                    19720
- -------------------------------------------------------------
(Address of principal executive offices)            (Zip Code)


Registrant's telephone number, including area code:  (302) 323-7184


                                 Not Applicable
                  ---------------------------------------------
                 (Former address, if changed since last report)


                                  Page 1 of 165
                         Index to Exhibits is on page 8


<PAGE>   2


Item 5.  Other Events

A) Series 1993-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1993-3,
which is attached as Exhibit 20(a) hereto.

B) Series 1994-2:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1994-2,
which is attached as Exhibit 20(b) hereto.

C) Series 1994-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1994-3,
which is attached as Exhibit 20(c) hereto. October 15, 1999 is also the date on
which holders of Class A Certificates and Class B Certificates received final
payment of principal and interest. Accordingly, Series 1994-3 terminated after
the final payment on October 15, 1999 and no further Monthly Certificateholders'
Statements will be forwarded to Investor Certificateholders of this series.

D) Series 1994-A:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1994-A,
which is attached as Exhibit 20(d) hereto.

E) Series 1995-1:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1995-1,
which is attached as Exhibit 20(e) hereto.

F) Series 1995-2:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1995-2,
which is attached as Exhibit 20(f) hereto.

G) Series 1995-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1995-3,
which is attached as Exhibit 20(g) hereto.

H) Series 1996-1:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1996-1,
which is attached as Exhibit 20(h) hereto.

I) Series 1996-2:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1996-2,
which is attached as Exhibit 20(i) hereto.

J) Series 1996-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1996-3,
which is attached as Exhibit 20(j) hereto.

K) Series 1996-4:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1996-4,
which is attached as Exhibit 20(k) hereto.

                                       2


<PAGE>   3


L) Series 1997-1:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1997-1,
which is attached as Exhibit 20(l) hereto.

M) Series 1997-2:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1997-2,
which is attached as Exhibit 20(m) hereto.

N) Series 1997-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1997-3,
which is attached as Exhibit 20(n) hereto.

O) Series 1997-4:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1997-4,
which is attached as Exhibit 20(o) hereto.

P) Series 1998-1:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1998-1,
which is attached as Exhibit 20(p) hereto.

Q) Series 1998-2:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1998-2,
which is attached as Exhibit 20(q) hereto.

R) Series 1998-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1998-3,
which is attached as Exhibit 20(r) hereto.

S) Series 1998-4:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1998-4,
which is attached as Exhibit 20(s) hereto.

T) Series 1998-6:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1998-6,
which is attached as Exhibit 20(t) hereto.

U) Series 1998-7:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1998-7,
which is attached as Exhibit 20(u) hereto.

V) Series 1999-1:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1999-1,
which is attached as Exhibit 20(v) hereto.

W) Series 1999-2:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1999-2,
which is attached as Exhibit 20(w) hereto.


                                       3

<PAGE>   4

X) Series 1999-3:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1999-3,
which is attached as Exhibit 20(x) hereto.

Y) Series 1999-4:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1999-4,
which is attached as Exhibit 20(y) hereto.

Z) Series 1999-5:
On October 15, 1999 the Registrant made available the Monthly
Certificateholders' Statement for September 1999 with respect to Series 1999-5,
which is attached as Exhibit 20(z) hereto.



                                       4


<PAGE>   5


Item 7.  Financial Statements and Exhibits
c)   Exhibits

<TABLE>
<CAPTION>
Exhibit No.               Description
- -----------               -----------
<S>                        <C>
20(a)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1993-3.

20(b)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1994-2.

20(c)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1994-3 that accompanied the final
                           distribution of principal and interest on October 15, 1999.

20(d)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1994-A.

20(e)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1995-1.

20(f)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1995-2.

20(g)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1995-3.

20(h)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1996-1.

20(i)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1996-2.

20(j)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1996-3.

20(k)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1996-4.

20(l)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1997-1.

20(m)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1997-2.

20(n)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1997-3.
</TABLE>

                                       5

<PAGE>   6

<TABLE>
<S>                        <C>
20(o)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1997-4.

20(p)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1998-1.

20(q)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1998-2.

20(r)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1998-3.

20(s)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1998-4.

20(t)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1998-6.

20(u)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1998-7.

20(v)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1999-1.

20(w)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1999-2.

20(x)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1999-3.

20(y)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1999-4.

20(z)                      Monthly Certificateholders' Statement, related to the month ending
                           September 30, 1999, for Series 1999-5.
</TABLE>



                                       6


<PAGE>   7


                                   SIGNATURES

     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.

                          DISCOVER CARD MASTER TRUST I
                                  (Registrant)

                           By:    GREENWOOD TRUST COMPANY
                                  as originator of the Trust

                           By:    John J. Coane
                                  -----------------------------------
                                  John J. Coane
                                  Vice President, Chief Accounting
                                  Officer and Treasurer




Date:  October 15, 1999


                                       7


<PAGE>   8


                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
Exhibit No.                     Description
- -----------                     -----------
<S>                             <C>
20(a)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1993-3.

20(b)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1994-2.

20(c)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1994-3.

20(d)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1994-A.

20(e)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1995-1.

20(f)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1995-2.

20(g)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1995-3.

20(h)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1996-1.

20(i)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1996-2.

20(j)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1996-3.

20(k)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1996-4.

20(l)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1997-1.

20(m)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1997-2.

20(n)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1997-3.

20(o)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1997-4.
</TABLE>

                                       8


<PAGE>   9

<TABLE>
<S>                             <C>
20(p)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1998-1.

20(q)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1998-2.

20(r)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1998-3.

20(s)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1998-4.

20(t)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1998-6.

20(u)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1998-7.

20(v)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1999-1.

20(w)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1999-2.

20(x)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1999-3.

20(y)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1999-4.

20(z)                           Monthly Certificateholders' Statement, related
                                to the month ending September 30, 1999, for
                                Series 1999-5.
</TABLE>


                                       9



<PAGE>   1
                                                                     EXHIBIT (A)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1993-3 Monthly Statement
                      Class A Certificate CUSIP #25466KAC3
                      Class B Certificate CUSIP #25466KAD1

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of November 23, 1993 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1993-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1993-3                                      Total          Interest            Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 6.200000000%        $5.166666667      $5.166666667        $0.000000000

         Class B      30 days at 6.450000000%        $5.375000000      $5.375000000        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1993-3 Investor Interest                       $366,493,000.00

 (e) Class A Investor Interest                             $350,000,000.00

     Class B Investor Interest                              $16,493,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                    Finance Charge     Principal         Yield Collections /
                                                                     Collections      Collections        Additional Funds
 <S>                                                               <C>               <C>                           <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                                 $333,904,676.22    $3,148,496,134.64             $0.00

     Seller Allocation                                             $103,819,395.28      $978,946,951.05             $0.00

 (b) Group One Allocation                                          $291,868,720.47    $2,752,125,392.80             $0.00

 (c) Group Two Allocation                                           $42,035,955.75      $396,370,741.84             $0.00

 (d) Series 1993-3 Allocations                                       $6,041,467.63       $56,966,969.47             $0.00

 (e) Class A Allocations                                             $5,769,640.98       $54,403,827.31             $0.00

     Class B Allocations                                               $271,826.65        $2,563,142.16             $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                               <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                            1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the     Deficit Amount
                              SPFAs on this          on this            SPFA                Investment
                            Distribution Date   Distribution Date     Balance                 Income
     <S>                    <C>                 <C>                   <C>                     <C>
     Series 1993-3           $0.00               0.00                  $0.00                   $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                                Total Payments
                                     Amount Paid on this               Deficit Amount            through this
                                      Distribution Date          on this Distribution Date    Distribution Date
     <S>                             <C>                         <C>                          <C>
     Series 1993-3                    $0.00                       $0.00                        $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                            Deposits into the SIFA
                                          on this Distribution Date             SIFA Balance
     <S>                                  <C>                                   <C>
     Series 1993-3                         $1,896,983.21                         $9,484,916.05
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                         Cumulative Investor
                                          This Distribution Date          Charged-Off Amount
 <S>                                     <C>                             <C>
 (a) Group One                            $94,095,541.69                  $0.00

 (b) Group Two                            $13,551,969.61                  $0.00

 (c) Series 1993-3                         $1,947,708.44                  $0.00

 (d) Class A                               $1,860,074.26                  $0.00

     Class B                                  $87,634.18                  $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%                   N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1993-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1993-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1993-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1993-3                                           $610,821.66

 (d) Class A                                                 $583,333.33

     Class B                                                  $27,488.33
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                           As a percentage of
                                              Total      Class A Invested Amount
     <S>                                 <C>                  <C>
     Series 1993-3 Class B                $23,822,045.00       6.8063%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                     Shared Amount   Class B Amount
 <S>                                              <C>               <C>
 (a) Maximum Amount                                $9,162,325.00     $5,497,395.00

 (b) Available Amount                              $9,162,325.00     $5,497,395.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                           $0.00             $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                                 $8,014.46
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount    Percentage of Ending
     Payment Status      Ending Balance       Receivables Outstanding
     <S>                 <C>                       <C>
     30-59 days            $762,163,223.55          2.83%

     60-179 days         $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1993-3 (3)                           5.17%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1993-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of November 23, 1993 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1993-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $54,403,827.31

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $5,769,640.98

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $2,563,142.16

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $271,826.65

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1


                                                                     EXHIBIT (B)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1994-2 Monthly Statement
                      Class A Certificate CUSIP #25466KAJ8
                      Class B Certificate CUSIP #25466KAK5

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of October 14, 1994 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1994-2 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1994-2                                     Total           Interest            Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.730000000%        $4.775000000      $4.775000000        $0.000000000

         Class B      30 days at 8.050000000%        $6.708333333      $6.708333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1994-2 Investor Interest                       $894,737,000.00

 (e) Class A Investor Interest                             $850,000,000.00

     Class B Investor Interest                              $44,737,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                Finance Charge         Principal             Yield Collections /
                                                                 Collections          Collections              Additional Funds
     <S>                                                        <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1994-2 Allocations                                   $14,749,550.32        $139,078,322.22            $0.00

 (e) Class A Allocations                                         $14,011,985.26        $132,123,580.62            $0.00

     Class B Allocations                                            $737,565.06          $6,954,741.60            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                              <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the          Deficit Amount
                              SPFAs on this               on this          SPFA                 Investment
                            Distribution Date        Distribution Date    Balance                 Income
     <S>                    <C>                     <C>                   <C>                   <C>
     Series 1994-2           $0.00                   0.00                  $0.00                 $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                               Total Payments
                                  Amount Paid on this                Deficit Amount             through this
                                   Distribution Date            on this Distribution Date    Distribution Date
     <S>                          <C>                         <C>                           <C>
     Series 1994-2                 $0.00                       $0.00                        $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                           Deposits into the SIFA
                                          on this Distribution Date            SIFA Balance
     <S>                                  <C>                                  <C>
     Series 1994-2                         $4,358,860.71                        $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                    Cumulative Investor
                                          This Distribution Date     Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1994-2                         $4,755,106.76            $0.00

 (d) Class A                               $4,517,323.20            $0.00

     Class B                                 $237,783.56            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1994-2                                         $1,491,228.34

 (d) Class A                                               $1,416,666.67

     Class B                                                  $74,561.67
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                           As a percentage of
                                              Total      Class A Invested Amount
     <S>                                 <C>                 <C>
     Series 1994-2 Class B                $89,473,700.00      10.5263%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount     Class B Amount
 <S>                                              <C>               <C>
 (a) Maximum Amount                                $0.00             $44,736,850.00

 (b) Available Amount                              $0.00             $44,736,850.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                      $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                                 $15,137.42
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                              Delinquent Amount       Percentage of Ending
     Payment Status                                           Ending Balance          Receivables Outstanding
     <S>                                                      <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1994-2 (3)                           5.54%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5

                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1994-2 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of October 14, 1994 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1994-2 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $132,123,580.62

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $14,011,985.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $4,058,750.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $6,954,741.60

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $737,565.06

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $300,110.71

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1



                                                                     EXHIBIT (C)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1994-3 Monthly Statement
                      Class A Certificate CUSIP #25466KAL3
                      Class B Certificate CUSIP #25466KAM1

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of October 20, 1994 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1994-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1994-3                               Total                  Interest          Principal
         <S>                                    <C>                   <C>               <C>
         Class A      30 days at 5.57000000      $1,004.641666667      $4.641666667      $1,000.000000000

         Class B      30 days at 7.75000000      $1,006.458333333      $6.458333333      $1,000.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1994-3 Investor Interest                                 $0.00

 (e) Class A Investor Interest                                       $0.00

     Class B Investor Interest                                       $0.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                             Finance Charge     Principal            Yield Collections /
                                                              Collections      Collections             Additional Funds
     <S>                                                     <C>                  <C>                         <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                           $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                       $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                    $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                     $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1994-3 Allocations                                $13,014,412.09        $122,717,137.83            $0.00

 (e) Class A Allocations                                      $12,363,516.40        $116,579,629.96            $0.00

     Class B Allocations                                         $650,895.69          $6,137,507.87            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                          <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                       15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                        1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                       16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                        Deposits into the                       Deficit Amount
                          SPFAs on this                            on this              SPFA                    Investment
                        Distribution Date                     Distribution Date       Balance                     Income
     <S>                <C>                                   <C>                     <C>                       <C>
     Series 1994-3       $789,474,000.00                       0.00                    $0.00                     $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                  Total Payments
                         Amount Paid on this             Deficit Amount            through this
                          Distribution Date        on this Distribution Date     Distribution Date
     <S>                <C>                        <C>                          <C>
     Series 1994-3       $789,474,000.00            $0.00                        $789,474,000.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                           Deposits into the SIFA
                                          on this Distribution Date     SIFA Balance
     <S>                                  <C>                           <C>
     Series 1994-3                         $3,736,186.25                 $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                   Cumulative Investor
                                          This Distribution Date    Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1994-3                         $4,195,715.64            $0.00

 (d) Class A                               $3,985,873.41            $0.00

     Class B                                 $209,842.23            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1994-3                                         $1,315,790.00

 (d) Class A                                               $1,250,000.00

     Class B                                                  $65,790.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                                  As a percentage of
                                                    Total      Class A Invested Amount
     <S>                                          <C>         <C>
     Series 1994-3 Class B                         $0.00       0.0000%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount    Class B Amount
 <S>                                              <C>              <C>
 (a) Maximum Amount                                $0.00                 $0.00

 (b) Available Amount                              $0.00                 $0.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                 $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                            $11,711.84
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                               Delinquent Amount          Percentage of Ending
     Payment Status                                            Ending Balance             Receivables Outstanding
     <S>                                                       <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1994-3 (3)                           5.71%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1994-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of October 20, 1994 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1994-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $116,579,629.96

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $12,363,516.40

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                $753,481,250.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $6,137,507.87

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $650,895.69

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                 $39,728,936.25

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1


                                                                     EXHIBIT (D)


                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1994-A Monthly Statement

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of December 20, 1994 relating to the
Pooling and Servicing Agreement dated as of October  1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth this information for the Distribution Date listed above, as
well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in 1994-A on this Distribution Date (per $1000 of Class Initial Investor Interest)
     ------------------------------------------------------------------------------------------------------------------------

     Series  1994-A                                    Total            Interest         Principal
         <S>                                       <C>               <C>               <C>
         Class A      30 days at 5.517879080%       $4.598232567      $4.598232567      $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1994-A Investor Interest                     $2,550,000,000.00

 (e) Class A Investor Interest                           $2,550,000,000.00

     Class B Investor Interest                                       $0.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                 Finance Charge        Principal            Yield Collections /
                                                                  Collections         Collections             Additional Funds
 <S>                                                             <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                               $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                           $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                        $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                         $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1994-A Allocations                                    $42,035,955.75        $396,370,741.84            $0.00

 (e) Class A Allocations                                          $42,035,955.75        $396,370,741.84            $0.00

     Class B Allocations                                                   $0.00                  $0.00            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                               <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                            1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the            Deficit Amount
                              SPFAs on this                 on this                SPFA                     Investment
                            Distribution Date          Distribution Date         Balance                      Income
     <S>                    <C>                        <C>                       <C>                        <C>
     Series 1994-A           $0.00                      0.00                      $0.00                      $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                      Total Payments
                                  Amount Paid on this        Deficit Amount            through this
                                   Distribution Date      on this Distribution    DateDistribution Date
     <S>                          <C>                     <C>                     <C>
     Series 1994-A                 $0.00                   $0.00                   $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                          Deposits into the SIFA
                                         on this Distribution Date    SIFA Balance
     <S>                                 <C>                          <C>
     Series 1994-A                        $11,725,493.05               $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 0.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                   Cumulative Investor
                                         This Distribution Date     Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1994-A                        $13,551,969.61            $0.00

 (d) Class A                              $13,551,969.61            $0.00

     Class B                                       $0.00            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-A                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-A                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1994-A                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1994-A                                         $4,250,000.00

 (d) Class A                                               $4,250,000.00

     Class B                                                       $0.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                             As a percentage of
                                                 Total     Class A Invested Amount
     <S>                                         <C>           <C>
     Series 1994-A Class B                        $0.00         0.0000%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                        Shared Amount       Class B Amount
 <S>                                    <C>                   <C>
 (a) Maximum Amount                      $204,000,000.00            $0.00

 (b) Available Amount                    $204,000,000.00            $0.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                      $103,026.84
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                                Delinquent Amount     Percentage of Ending
     Payment Status                                             Ending Balance        Receivables Outstanding
     <S>                                                        <C>                       <C>
     30-59 days                                                   $762,163,223.55         2.83%

     60-179 days                                                $1,221,238,653.49         4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     ------------------------------------------------------
 <S>                                             <C>
 (a) Group One (2)                                5.67%

 (b) Group Two (2)                                5.84%

 (c) Series 1994-A (3)                            5.84%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

(1) For series in Group One, investors should refer only to the higher of the
    Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
    Percentage (Item 16(c)) in assessing the current performance or the Trust
    and the Receivables.

(2) Group Excess Spread is the sum of the Series Excess Spreads (as described
    below) for each series in the Group.  The Group Excess Spread Percentage is
    equal to the Group Excess Spread, multiplied by twelve, divided by the
    Series Investor Interests for each series in the Group.

(3) Series Excess Spread is the difference between (a) the sum of Finance
    Charge Collections, Yield Collections, Additional Funds and Investment
    Income for any Class of this Series (see Item 3(e)), and (b) the sum of (i)
    the monthly interest for each Class of this Series (see Item 1), (ii) the
    monthly servicing fee for each Class of this Series (see Item 12(d)), (iii)
    the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
    Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
    The Series Excess Spread Percentage is equal to the Series Excess Spread,
    multiplied by twelve, divided by the Series Investor Interest for this
    Series.

(4) For purposes of allocations to investors, recoveries are treated as Finance
    Charge Collections and are included as such in Item 3 above.

<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1994-A Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of December 20, 1994 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1994-A Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $396,370,741.84

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $42,035,955.75

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     Date is equal to                                                                                                      $0.00

 7.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                 $11,725,493.05

 8.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer


<PAGE>   1


                                                                     EXHIBIT (E)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1995-1 Monthly Statement
                      Class A Certificate CUSIP #25466KAN9
                      Class B Certificate CUSIP #25466KAP4

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of April 19, 1995 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1995-1 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1995-1                                     Total             Interest          Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.660000000%        $4.716666667      $4.716666667        $0.000000000

         Class B      30 days at 5.830000000%        $4.858333333      $4.858333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1995-1 Investor Interest                       $631,579,000.00

 (e) Class A Investor Interest                             $600,000,000.00

     Class B Investor Interest                              $31,579,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                              Finance Charge        Principal           Yield Collections /
                                                               Collections         Collections            Additional Funds
 <S>                                                          <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                             $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                         $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                      $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                       $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1995-1 Allocations                                  $10,411,267.04         $98,171,233.79            $0.00

 (e) Class A Allocations                                         $9,890,813.12         $93,263,703.96            $0.00

     Class B Allocations                                           $520,453.92          $4,907,529.83            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                         15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                         16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the         Deficit Amount
                              SPFAs on this              on this              SPFA                   Investment
                            Distribution Date       Distribution Date        Balance                   Income
     <S>                    <C>                     <C>                      <C>                     <C>
     Series 1995-1           $0.00                   0.00                     $0.00                   $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                          Total Payments
                                  Amount Paid on this         Deficit Amount               through this
                                   Distribution Date     on this Distribution Date      Distribution Date
     <S>                          <C>                   <C>                             <C>
     Series 1995-1                 $0.00                 $0.00                          $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                            Deposits into the SIFA
                                          on this Distribution Date         SIFA Balance
     <S>                                  <C>                               <C>
     Series 1995-1                         $2,983,421.31                    $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                   Cumulative Investor
                                          This Distribution Date   Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1995-1                         $3,356,487.84            $0.00

 (d) Class A                               $3,188,698.73            $0.00

     Class B                                 $167,789.11            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1995-1                                         $1,052,631.67

 (d) Class A                                               $1,000,000.00

     Class B                                                  $52,631.67
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                            As a percentage of
                                              Total       Class A Invested Amount
     <S>                                 <C>                 <C>
     Series 1995-1 Class B                $69,473,690.00      11.5789%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount  Class B Amount
 <S>                                              <C>            <C>
 (a) Maximum Amount                                $0.00          $37,894,740.00

 (b) Available Amount                              $0.00          $37,894,740.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                   $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                              $25,453.81
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                               Delinquent Amount    Percentage of Ending
     Payment Status                                            Ending Balance       Receivables Outstanding
     <S>                                                       <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1995-1 (3)                           5.69%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1995-1 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of April 19, 1995 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1995-1 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $93,263,703.96

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $9,890,813.12

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $2,830,000.00
</TABLE>

<PAGE>   6


<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,907,529.83

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $520,453.92

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $153,421.31

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer


<PAGE>   1


                                                                     EXHIBIT (F)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1995-2 Monthly Statement
                      Class A Certificate CUSIP #25466KAQ2
                      Class B Certificate CUSIP #25466KAR0

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of August  1, 1995 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1995-2 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1995-2                                   Total              Interest            Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 6.550000000%        $5.458333333      $5.458333333        $0.000000000

         Class B      30 days at 6.750000000%        $5.625000000      $5.625000000        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1995-2 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                Finance Charge        Principal            Yield Collections /
                                                                 Collections         Collections             Additional Funds
 <S>                                                            <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                               $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                           $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                        $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                         $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1995-2 Allocations                                     $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                           $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                             $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                              <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                            1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the            Deficit Amount
                              SPFAs on this                 on this              SPFA                    Investment
                            Distribution Date          Distribution Date        Balance                    Income
     <S>                    <C>                        <C>                      <C>                       <C>
     Series 1995-2           $0.00                      0.00                     $0.00                      $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                       Total Payments
                                  Amount Paid on this           Deficit Amount          through this
                                   Distribution Date      on this Distribution Date   Distribution Date
     <S>                          <C>                     <C>                        <C>
     Series 1995-2                 $0.00                   $0.00                      $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                          Deposits into the SIFA
                                         on this Distribution Date  SIFA Balance
     <S>                                 <C>                        <C>
     Series 1995-2                        $2,877,194.17              $5,754,388.34
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                    Cumulative Investor
                                          This Distribution Date    Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1995-2                         $2,797,096.72            $0.00

 (d) Class A                               $2,657,248.94            $0.00

     Class B                                 $139,847.78            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1995-2                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                            As a percentage of
                                              Total       Class A Invested Amount
     <S>                                 <C>                  <C>
     Series 1995-2 Class B                $34,210,540.00       6.8421%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount   Class B Amount
 <S>                                              <C>             <C>
 (a) Maximum Amount                                $0.00           $15,789,480.00

 (b) Available Amount                              $0.00           $15,789,480.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                    $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                                $4,684.80
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                               Delinquent Amount     Percentage of Ending
     Payment Status                                            Ending Balance        Receivables Outstanding
     <S>                                                       <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1995-2 (3)                           4.83%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1995-2 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of August  1, 1995 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1995-2 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   6


<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer


<PAGE>   1


                                                                     EXHIBIT (G)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1995-3 Monthly Statement
                      Class A Certificate CUSIP #25466KAS8
                      Class B Certificate CUSIP #25466KAT6

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of September 28, 1995 relating to
the Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1995-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1995-3                                    Total             Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.590000000%        $4.658333333      $4.658333333        $0.000000000

         Class B      30 days at 5.710000000%        $4.758333333      $4.758333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1995-3 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                               Finance Charge        Principal            Yield Collections /
                                                                Collections         Collections             Additional Funds
 <S>                                                           <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1995-3 Allocations                                    $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                          $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                            $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                             <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the      Deficit Amount
                              SPFAs on this           on this        SPFA               Investment
                            Distribution Date    Distribution Date  Balance               Income
     <S>                    <C>                  <C>                <C>                 <C>
     Series 1995-3           $0.00                0.00               $0.00               $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                        Total Payments
                                  Amount Paid on this           Deficit Amount           through this
                                   Distribution Date      on this Distribution Date   Distribution Date
     <S>                          <C>                     <C>                         <C>
     Series 1995-3                 $0.00                   $0.00                       $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                            Deposits into the SIFA
                                          on this Distribution Date         SIFA Balance
     <S>                                  <C>                                 <C>
     Series 1995-3                         $2,454,386.97                       $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                    Cumulative Investor
                                          This Distribution Date     Charged-Off Amount
 <S>                                     <C>                           <C>
 (a) Group One                            $94,095,541.69                $0.00

 (b) Group Two                            $13,551,969.61                $0.00

 (c) Series 1995-3                         $2,797,096.72                $0.00

 (d) Class A                               $2,657,248.94                $0.00

     Class B                                 $139,847.78                $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%                 N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1995-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1995-3                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                             As a percentage of
                                              Total        Class A Invested Amount
     <S>                                 <C>                   <C>
     Series 1995-3 Class B                $57,894,760.00        11.5790%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount        Class B Amount
 <S>                                              <C>                <C>
 (a) Maximum Amount                                $0.00              $31,578,960.00

 (b) Available Amount                              $0.00              $31,578,960.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                       $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                                  $13,974.75
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                               Delinquent Amount      Percentage of Ending
     Payment Status                                            Ending Balance         Receivables Outstanding
     <S>                                                       <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1995-3 (3)                           5.78%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1995-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of September 28, 1995 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1995-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $2,329,166.67
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $125,220.30

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer


<PAGE>   1


                                                                     EXHIBIT (H)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1996-1 Monthly Statement
                      Class A Certificate CUSIP #25466KAU3
                      Class B Certificate CUSIP #25466KAV1

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of January 18, 1996 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1996-1 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1996-1                                    Total            Interest             Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.550000000%        $4.625000000      $4.625000000        $0.000000000

         Class B      30 days at 5.680000000%        $4.733333333      $4.733333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1996-1 Investor Interest                     $1,052,632,000.00

 (e) Class A Investor Interest                           $1,000,000,000.00

     Class B Investor Interest                              $52,632,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                Finance Charge       Principal           Yield Collections /
                                                                 Collections        Collections            Additional Funds
 <S>                                                            <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1996-1 Allocations                                   $17,352,257.65        $163,620,098.81            $0.00

 (e) Class A Allocations                                         $16,484,688.54        $155,439,506.61            $0.00

     Class B Allocations                                            $867,569.11          $8,180,592.20            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                              <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the           Deficit Amount
                              SPFAs on this                on this                SPFA                      Investment
                            Distribution Date         Distribution Date          Balance                     Income
     <S>                    <C>                       <C>                        <C>                        <C>
     Series 1996-1           $0.00                     0.00                       $0.00                      $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                              Total Payments
                                  Amount Paid on this              Deficit Amount              through this
                                   Distribution Date         on this Distribution Date       Distribution Date
     <S>                          <C>                        <C>                            <C>
     Series 1996-1                 $0.00                      $0.00                          $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                           Deposits into the SIFA
                                          on this Distribution Date     SIFA Balance
     <S>                                  <C>                           <C>
     Series 1996-1                         $4,874,124.80                 $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                   Cumulative Investor
                                          This Distribution Date    Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1996-1                         $5,594,193.45            $0.00

 (d) Class A                               $5,314,497.89            $0.00

     Class B                                 $279,695.56            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1996-1                                         $1,754,386.67

 (d) Class A                                               $1,666,666.67

     Class B                                                  $87,720.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                              As a percentage of
                                              Total         Class A Invested Amount
     <S>                                <C>                     <C>
     Series 1996-1 Class B               $105,263,200.00         10.5263%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount     Class B Amount
 <S>                                              <C>             <C>
 (a) Maximum Amount                                $0.00           $57,894,760.00

 (b) Available Amount                              $0.00           $57,894,760.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                    $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                               $17,177.39
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                               Delinquent Amount    Percentage of Ending
     Payment Status                                            Ending Balance       Receivables Outstanding
     <S>                                                       <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1996-1 (3)                           5.83%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1996-1 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of January 18, 1996 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1996-1 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $155,439,506.61

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $16,484,688.54

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $4,625,000.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $8,180,592.20

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $867,569.11

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $249,124.80

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1


                                                                     EXHIBIT (I)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1996-2 Monthly Statement
                      Class A Certificate CUSIP #25466KAW9
                      Class B Certificate CUSIP #25466KAX7

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of January 29, 1996 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1996-2 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1996-2                                    Total            Interest             Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.600000000%        $4.666666667      $4.666666667        $0.000000000

         Class B      30 days at 5.740000000%        $4.783333333      $4.783333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1996-2 Investor Interest                       $947,369,000.00

 (e) Class A Investor Interest                             $900,000,000.00

     Class B Investor Interest                              $47,369,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                              Finance Charge        Principal              Yield Collections /
                                                               Collections         Collections               Additional Funds
 <S>                                                          <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1996-2 Allocations                                   $15,617,119.43        $147,258,914.41            $0.00

 (e) Class A Allocations                                         $14,836,219.68        $139,895,555.95            $0.00

     Class B Allocations                                            $780,899.75          $7,363,358.46            $0.00
</TABLE>

<PAGE>   2

<TABLE>
 <S>                                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                            Deposits into the           Deficit Amount
                              SPFAs on this                on this             SPFA                     Investment
                            Distribution Date         Distribution Date       Balance                     Income
     <S>                    <C>                       <C>                     <C>                       <C>
     Series 1996-2           $0.00                     0.00                    $0.00                     $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                             Total Payments
                                  Amount Paid on this                Deficit Amount           through this
                                   Distribution Date           on this Distribution Date    Distribution Date
     <S>                          <C>                          <C>                         <C>
     Series 1996-2                 $0.00                        $0.00                       $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                          Deposits into the SIFA
                                         on this Distribution Date       SIFA Balance
     <S>                                  <C>                            <C>
     Series 1996-2                         $4,426,581.72                  $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                   Cumulative Investor
                                          This Distribution Date    Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1996-2                         $5,034,802.33            $0.00

 (d) Class A                               $4,783,048.10            $0.00

     Class B                                 $251,754.23            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1996-2                                         $1,578,948.33

 (d) Class A                                               $1,500,000.00

     Class B                                                  $78,948.33
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------
                                                           As a percentage of
                                              Total      Class A Invested Amount
     <S>                                <C>                  <C>
     Series 1996-2 Class B               $104,210,590.00      11.5790%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                  Shared Amount       Class B Amount
 <S>                                              <C>              <C>
 (a) Maximum Amount                                $0.00            $56,842,140.00

 (b) Available Amount                              $0.00            $56,842,140.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00                     $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                                $27,522.98
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                                               Delinquent Amount      Percentage of Ending
     Payment Status                                            Ending Balance         Receivables Outstanding
     <S>                                                       <C>                        <C>
     30-59 days                                                  $762,163,223.55          2.83%

     60-179 days                                               $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1996-2 (3)                           5.76%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1996-2 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of January 29, 1996 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1996-2 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $139,895,555.95

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $14,836,219.68

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $4,200,000.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                  <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $7,363,358.46

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $780,899.75

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $226,581.72

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
 certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                            and Treasurer


<PAGE>   1
                                                                    EXHIBIT (J)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1996-3 Monthly Statement
                      Class A Certificate CUSIP #25466KAY5
                      Class B Certificate CUSIP #25466KAZ2

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of February 21, 1996 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1996-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1996-3                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 6.050000000%        $5.041666667      $5.041666667        $0.000000000

         Class B      30 days at 6.250000000%        $5.208333333      $5.208333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
<S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1996-3 Investor Interest                       $631,579,000.00

 (e) Class A Investor Interest                             $600,000,000.00

     Class B Investor Interest                              $31,579,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                               Finance Charge         Principal     Yield Collections /
                                                                Collections          Collections    Additional Funds
 <S>                                                        <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                            $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                        $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                     $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                      $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1996-3 Allocations                                 $10,411,267.04         $98,171,233.79            $0.00

 (e) Class A Allocations                                        $9,890,813.12         $93,263,703.96            $0.00

     Class B Allocations                                          $520,453.92          $4,907,529.83            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                           <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                `                       16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                                    Deposits into the   Deficit Amount
                                      SPFAs on this        on this             SPFA          Investment
                                    Distribution Date  Distribution Date     Balance          Income
     <S>                                    <C>                   <C>          <C>           <C>
     Series 1996-3                           $0.00                 0.00         $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                         Total Payments
                   Amount Paid on this          Deficit Amount            through this
                    Distribution Date       on this Distribution Date   Distribution Date
     <S>                          <C>                       <C>                   <C>
     Series 1996-3                 $0.00                     $0.00                 $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                         Deposits into the SIFA
                                         on this Distribution Date      SIFA Balance
     <S>                                          <C>                     <C>
     Series 1996-3                                 $3,189,473.96           $6,378,947.92
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                           Cumulative Investor
                                  This Distribution Date    Charged-Off Amount
 <S>                                     <C>                            <C>
 (a) Group One                            $94,095,541.69                 $0.00

 (b) Group Two                            $13,551,969.61                 $0.00

 (c) Series 1996-3                         $3,356,487.84                 $0.00

 (d) Class A                               $3,188,698.73                 $0.00

     Class B                                 $167,789.11                 $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%                  N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>                 <C>
 (a) Group One                                     $0.00               $0.00

 (b) Group Two                                     $0.00               $0.00

 (c) Series 1996-3                                 $0.00               $0.00

 (d) Class A                                       $0.00               $0.00

     Class B                                       $0.00               $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal
 <S>                                              <C>                 <C>
 (a) Group One                                     $0.00               $0.00

 (b) Group Two                                     $0.00               $0.00

 (c) Series 1996-3                                 $0.00               $0.00

 (d) Class A                                       $0.00               $0.00

     Class B                                       $0.00               $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal
 <S>                                              <C>                 <C>
 (a) Group One                                     $0.00               $0.00

 (b) Group Two                                     $0.00               $0.00

 (c) Series 1996-3                                 $0.00               $0.00

 (d) Class A                                       $0.00               $0.00

     Class B                                       $0.00               $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1996-3                                         $1,052,631.67

 (d) Class A                                               $1,000,000.00

     Class B                                                  $52,631.67
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount
     <S>                                 <C>                  <C>
     Series 1996-3 Class B                $37,894,740.00       6.3158%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                              Shared Amount    Class B Amount
 <S>                                                   <C>       <C>
 (a) Maximum Amount                                     $0.00     $18,947,370.00

 (b) Available Amount                                   $0.00     $18,947,370.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                        $0.00              $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                              $14,305.89
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                              Delinquent Amount  Percentage of Ending
     Payment Status           Ending Balance     Receivables Outstanding
     <S>                     <C>                 <C>
     30-59 days                $762,163,223.55          2.83%

     60-179 days             $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1996-3 (3)                           5.32%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                  <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>


                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- ----------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5

                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1996-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of February 21, 1996 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1996-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $93,263,703.96

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $9,890,813.12

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                          <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,907,529.83

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $520,453.92

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                    EXHIBIT (K)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1996-4 Monthly Statement
                      Class A Certificate CUSIP #25466KBA6
                      Class B Certificate CUSIP #25466KBB4

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of April 30, 1996 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1996-4 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1996-4                                     Total             Interest            Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.755000000%        $4.795833333      $4.795833333        $0.000000000

         Class B      30 days at 5.930000000%        $4.941666667      $4.941666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1996-4 Investor Interest                     $1,052,632,000.00

 (e) Class A Investor Interest                           $1,000,000,000.00

     Class B Investor Interest                              $52,632,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                               Finance Charge           Principal     Yield Collections /
                                                                Collections            Collections    Additional Funds
 <S>                                                          <C>                  <C>                         <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                             $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                         $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                      $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                       $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1996-4 Allocations                                  $17,352,257.65        $163,620,098.81            $0.00

 (e) Class A Allocations                                        $16,484,688.54        $155,439,506.61            $0.00

     Class B Allocations                                           $867,569.11          $8,180,592.20            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                   <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                16.92%
</TABLE>


<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                   Deposits into the     Deficit Amount
                     SPFAs on this           on this         SPFA          Investment
                   Distribution Date    Distribution Date   Balance          Income
     <S>                    <C>                 <C>            <C>           <C>
     Series 1996-4           $0.00               0.00           $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                             Total Payments
                         Amount Paid on this         Deficit Amount           through this
                          Distribution Date     on this Distribution Date    Distribution Date
     <S>                               <C>                    <C>                     <C>
     Series 1996-4                      $0.00                  $0.00                   $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                   Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance
     <S>                                  <C>                         <C>
     Series 1996-4                         $5,055,923.13               $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                           Cumulative Investor
                                  This Distribution Date    Charged-Off Amount
 <S>                                     <C>                            <C>
 (a) Group One                            $94,095,541.69                 $0.00

 (b) Group Two                            $13,551,969.61                 $0.00

 (c) Series 1996-4                         $5,594,193.45                 $0.00

 (d) Class A                               $5,314,497.89                 $0.00

     Class B                                 $279,695.56                 $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%                  N/A
</TABLE>

<PAGE>   3
<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                        Per $1,000 of original
                                              Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1,000 of original
                                               Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1996-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1996-4                                         $1,754,386.67

 (d) Class A                                               $1,666,666.67

     Class B                                                  $87,720.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                            Total        Class A Invested Amount
     <S>                                <C>                  <C>
     Series 1996-4 Class B               $115,789,520.00      11.5790%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                          Shared Amount  Class B Amount
 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $63,157,920.00

 (b) Available Amount                              $0.00   $63,157,920.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $50,317.91
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount  Percentage of Ending
     Payment Status      Ending Balance     Receivables Outstanding
     <S>              <C>                        <C>
     30-59 days           $762,163,223.55          2.83%

     60-179 days        $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1996-4 (3)                           5.58%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                            <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President


- -------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1996-4 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of April 30, 1996 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1996-4 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $155,439,506.61

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $16,484,688.54

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $4,795,833.33
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                             <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $8,180,592.20

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $867,569.11

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $260,089.80

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1


                                                                    EXHIBIT (L)


                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1997-1 Monthly Statement
                      Class A Certificate CUSIP #25466KBD0
                      Class B Certificate CUSIP #25466KBE8

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of August 26, 1997 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1997-1 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1997-1                                     Total           Interest             Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.470000000%        $4.558333333      $4.558333333        $0.000000000

         Class B      30 days at 5.650000000%        $4.708333333      $4.708333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1997-1 Investor Interest                       $789,474,000.00

 (e) Class A Investor Interest                             $750,000,000.00

     Class B Investor Interest                              $39,474,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                Finance Charge           Principal     Yield Collections /
                                                                 Collections            Collections    Additional Funds
 <S>                                                          <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1997-1 Allocations                                   $13,014,412.09        $122,717,137.83            $0.00

 (e) Class A Allocations                                         $12,363,516.40        $116,579,629.96            $0.00

     Class B Allocations                                            $650,895.69          $6,137,507.87            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                     <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------
                    Deposits into the     Deficit Amount
                      SPFAs on this          on this         SPFA          Investment
                    Distribution Date   Distribution Date   Balance          Income
     <S>                    <C>                   <C>          <C>           <C>
     Series 1997-1           $0.00                 0.00         $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                          Total Payments
                      Amount Paid on this        Deficit Amount            through this
                       Distribution Date    on this Distribution Date    Distribution Date
     <S>                          <C>                      <C>                    <C>
     Series 1997-1                 $0.00                    $0.00                  $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------
                                      Deposits into the SIFA
                                    on this Distribution Date   SIFA Balance
     <S>                                  <C>                        <C>
     Series 1997-1                         $3,604,606.75              $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                           Cumulative Investor
                                  This Distribution Date   Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1997-1                         $4,195,715.64            $0.00

 (d) Class A                               $3,985,873.41            $0.00

     Class B                                 $209,842.23            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1,000 of original
                                               Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1997-1                                         $1,315,790.00

 (d) Class A                                               $1,250,000.00

     Class B                                                  $65,790.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                         As a percentage of
                                            Total      Class A Invested Amount
     <S>                                 <C>                 <C>
     Series 1997-1 Class B                $98,684,250.00      13.1579%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                           Shared Amount  Class B Amount
 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $59,210,550.00

 (b) Available Amount                              $0.00   $59,210,550.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $28,669.78
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount    Percentage of Ending
     Payment Status      Ending Balance       Receivables Outstanding
     <S>                 <C>                         <C>
     30-59 days             $762,163,223.55            2.83%

     60-179 days          $1,221,238,653.49            4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1997-1 (3)                           5.88%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                    <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5




                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1997-1 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of August 26, 1997 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1997-1 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $116,579,629.96

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $12,363,516.40

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $3,418,750.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                             <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $6,137,507.87

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $650,895.69

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $185,856.75

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1



                                                                    EXHIBIT (M)


                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1997-2 Monthly Statement
                      Class A Certificate CUSIP #25466KBF5
                      Class B Certificate CUSIP #25466KBG3

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of October 15, 1997 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1997-2 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1997-2                                     Total            Interest           Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 6.792000000%        $5.660000000      $5.660000000        $0.000000000

         Class B      30 days at 5.780000000%        $4.816666667      $4.816666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1997-2 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                     Finance Charge        Principal      Yield Collections /
                                                                      Collections         Collections     Additional Funds
 <S>                                                             <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                          $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                           $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1997-2 Allocations                                       $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                             $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                               $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                    <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                     Deposits into the     Deficit Amount
                       SPFAs on this          on this           SPFA          Investment
                     Distribution Date    Distribution Date    Balance          Income
     <S>                        <C>               <C>          <C>             <C>
     Series 1997-2               $0.00             0.00         $0.00           $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                                     Total Payments
                  Amount Paid           PSA Index          Monthly             Deficit Amount         through this
            this Distribution Date        Rate*       Amortization Rate*   this Distribution Date    Distribution Date
     <S>                   <C>            <C>             <C>                   <C>                            <C>
     Class A                $0.00           N/A                N/A                   $0.00                      $0.00

     Class B                $0.00           N/A                N/A                   $0.00                      $0.00

     *Rates are only applicable during the Class A Controlled Liquidation Period.
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                      Deposits into the SIFA
                                      on this Distribution Date       SIFA Balance
     <S>                                  <C>                          <C>
     Series 1997-2                         $2,956,755.40                     $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                           Cumulative Investor
                                  This Distribution Date    Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1997-2                         $2,797,096.72            $0.00

 (d) Class A                               $2,657,248.94            $0.00

     Class B                                 $139,847.78            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                        Per $1,000 of original
                                              Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1,000 of original
                                               Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1997-2                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                              As a percentage of
                                            Total          Class A Invested Amount
     <S>                                   <C>                  <C>
     Series 1997-2 Class B                  $47,368,440.00       9.4737%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                           Shared Amount  Class B Amount
 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $21,052,640.00

 (b) Available Amount                              $0.00   $21,052,640.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $16,772.65
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------
     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount    Percentage of Ending
     Payment Status      Ending Balance       Receivables Outstanding
     <S>                 <C>                  <C>
     30-59 days             $762,163,223.55          2.83%

     60-179 days          $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1997-2 (3)                           4.62%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                   <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1997-2 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of October 15, 1997 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1997-2 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $2,830,000.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                             <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $126,755.40

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>


     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1


                                                                    EXHIBIT (N)


                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1997-3 Monthly Statement
                      Class A Certificate CUSIP #25466KBH1
                      Class B Certificate CUSIP #25466KBJ7

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of October 23, 1997 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1997-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1997-3                                      Total           Interest            Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.510000000%        $4.591666667      $4.591666667        $0.000000000

         Class B      30 days at 5.690000000%        $4.741666667      $4.741666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1997-3 Investor Interest                       $684,211,000.00

 (e) Class A Investor Interest                             $650,000,000.00

     Class B Investor Interest                              $34,211,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                 Finance Charge         Principal      Yield Collections /
                                                                  Collections          Collections     Additional Funds
 <S>                                                         <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1997-3 Allocations                                   $11,278,836.15        $106,351,825.98            $0.00

 (e) Class A Allocations                                         $10,715,047.54        $101,035,679.29            $0.00

     Class B Allocations                                            $563,788.61          $5,316,146.69            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                    <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the        Deficit Amount
                          SPFAs on this             on this            SPFA          Investment
                        Distribution Date       Distribution Date    Balance          Income
     <S>                          <C>                      <C>          <C>           <C>
     Series 1997-3                 $0.00                    0.00         $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                             Total Payments
                         Amount Paid on this      Deficit Amount              through this
                          Distribution Date   on this Distribution Date     Distribution Date
     <S>                             <C>                     <C>                 <C>
     Series 1997-3                    $0.00                    $0.00                 $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                          Deposits into the SIFA
                                         on this Distribution Date      SIFA Balance
     <S>                                  <C>                           <C>
     Series 1997-3                         $3,146,800.49                 $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                            Cumulative Investor
                                  This Distribution Date    Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1997-3                         $3,636,183.41            $0.00

 (d) Class A                               $3,454,423.63            $0.00

     Class B                                 $181,759.78            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1,000 of original
                                               Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------
 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1997-3                                         $1,140,351.66

 (d) Class A                                               $1,083,333.33

     Class B                                                  $57,018.33
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                             As a percentage of
                                          Total           Class A Invested Amount
     <S>                                 <C>                 <C>
     Series 1997-3 Class B                $85,526,375.00      13.1579%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                          Shared Amount  Class B Amount
 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $51,315,825.00

 (b) Available Amount                              $0.00   $51,315,825.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $34,468.87
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount  Percentage of Ending
     Payment Status      Ending Balance     Receivables Outstanding
     <S>                <C>                     <C>
     30-59 days            $762,163,223.55          2.83%

     60-179 days         $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1997-3 (3)                           5.82%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                    <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1997-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of October 23, 1997 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1997-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $101,035,679.29

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $10,715,047.54

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $2,984,583.33
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                             <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $5,316,146.69

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $563,788.61

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $162,217.16

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1


                                                                    EXHIBIT (O)


                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1997-4 Monthly Statement
                      Class A Certificate CUSIP #25466KBK4
                      Class B Certificate CUSIP #25466KBL2

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of October 31, 1997 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1997-4 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1997-4                                      Total            Interest          Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.450000000%        $4.541666667      $4.541666667        $0.000000000

         Class B      30 days at 5.630000000%        $4.691666667      $4.691666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1997-4 Investor Interest                       $789,474,000.00

 (e) Class A Investor Interest                             $750,000,000.00

     Class B Investor Interest                              $39,474,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                 Finance Charge           Principal     Yield Collections /
                                                                  Collections            Collections    Additional Funds
 <S>                                                           <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                               $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                           $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                        $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                         $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1997-4 Allocations                                    $13,014,412.09        $122,717,137.83            $0.00

 (e) Class A Allocations                                          $12,363,516.40        $116,579,629.96            $0.00

     Class B Allocations                                             $650,895.69          $6,137,507.87            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                             <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                          15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                           1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                          16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                      Deposits into the         Deficit Amount
                         SPFAs on this             on this          SPFA          Investment
                      Distribution Date        Distribution Date   Balance          Income
     <S>                         <C>                    <C>          <C>           <C>
     Series 1997-4                $0.00                  0.00         $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                             Total Payments
                         Amount Paid on this         Deficit Amount           through this
                          Distribution Date     on this Distribution Date  Distribution Date
     <S>                             <C>                         <C>                  <C>
     Series 1997-4                    $0.00                       $0.00                $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                Deposits into the SIFA
                                on this Distribution Date      SIFA Balance
     <S>                                  <C>                      <C>
     Series 1997-4                         $3,591,448.85            $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                           Cumulative Investor
                                   This Distribution Date  Charged-Off Amount
 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1997-4                         $4,195,715.64            $0.00

 (d) Class A                               $3,985,873.41            $0.00

     Class B                                 $209,842.23            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1,000 of original
                                               Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1997-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1997-4                                         $1,315,790.00

 (d) Class A                                               $1,250,000.00

     Class B                                                  $65,790.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                            As a percentage of
                                          Total           Class A Invested Amount
     <S>                                 <C>                     <C>
     Series 1997-4 Class B                $98,684,250.00          13.1579%
</TABLE>


<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                         Shared Amount   Class B Amount
 <S>                                              <C>      <C>
 (a) Maximum Amount                                $0.00   $59,210,550.00

 (b) Available Amount                              $0.00   $59,210,550.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $17,567.80
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount  Percentage of Ending
     Payment Status      Ending Balance     Receivables Outstanding
     <S>              <C>                       <C>
     30-59 days          $762,163,223.55          2.83%

     60-179 days       $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1997-4 (3)                           5.92%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                    <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1997-4 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of October 31, 1997 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1997-4 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $116,579,629.96

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $12,363,516.40

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $3,406,250.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                           <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $6,137,507.87

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $650,895.69

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $185,198.85

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                     EXHIBIT (P)


                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1998-1 Monthly Statement
                      Class A Certificate CUSIP #25466KBM0
                      Class B Certificate CUSIP #25466KBN8

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of January 14, 1998 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1998-1 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1998-1                                      Total            Interest           Principal
         <S>                                        <C>               <C>                 <C>
         Class A      30 days at 5.470000000%        $4.558333333      $4.558333333        $0.000000000

         Class B      30 days at 5.650000000%        $4.708333333      $4.708333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------
 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1998-1 Investor Interest                       $368,422,000.00

 (e) Class A Investor Interest                             $350,000,000.00

     Class B Investor Interest                              $18,422,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                Finance Charge          Principal     Yield Collections /
                                                                 Collections           Collections    Additional Funds
 <S>                                                          <C>                  <C>                   <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                             $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                         $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                      $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                       $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1998-1 Allocations                                   $6,073,421.48         $57,268,272.81            $0.00

 (e) Class A Allocations                                         $5,769,640.98         $54,403,827.31            $0.00

     Class B Allocations                                           $303,780.50          $2,864,445.50            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                    <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                     Deposits into the    Deficit Amount
                      SPFAs on this          on this            SPFA          Investment
                    Distribution Date   Distribution Date      Balance         Income
     <S>                      <C>                  <C>            <C>           <C>
     Series 1998-1             $0.00                0.00           $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                Total Payments
                         Amount Paid on this       Deficit Amount                 through this
                          Distribution Date     on this Distribution Date       Distribution Date
     <S>                          <C>                           <C>                      <C>
     Series 1998-1                 $0.00                         $0.00                    $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                         Deposits into the SIFA
                                         on this Distribution Date      SIFA Balance
     <S>                                  <C>                           <C>
     Series 1998-1                         $1,682,153.59                $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------
     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                Cumulative Investor
                                  This Distribution Date        Charged-Off Amount
 <S>                                     <C>                              <C>
 (a) Group One                            $94,095,541.69                   $0.00

 (b) Group Two                            $13,551,969.61                   $0.00

 (c) Series 1998-1                         $1,958,010.04                   $0.00

 (d) Class A                               $1,860,074.26                   $0.00

     Class B                                  $97,935.78                   $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%                    N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                         Per $1,000 of original
                                               Total       invested Principal
<S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                           Per $1,000 of original
                                               Total         invested Principal
 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1998-1                                           $614,036.66

 (d) Class A                                                 $583,333.33

     Class B                                                  $30,703.33
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                            As a percentage of
                                            Total         Class A Invested Amount
     <S>                                 <C>                   <C>
     Series 1998-1 Class B                $46,052,750.00        13.1579%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                          Shared Amount  Class B Amount
 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $27,631,650.00

 (b) Available Amount                              $0.00   $27,631,650.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                        $8,198.33
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount  Percentage of Ending
     Payment Status      Ending Balance     Receivables Outstanding
     <S>               <C>                     <C>
     30-59 days            $762,163,223.55          2.83%

     60-179 days         $1,221,238,653.49          4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------
 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1998-1 (3)                           5.90%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
<S>                                                                     <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1998-1 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of January 14, 1998 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1998-1 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $54,403,827.31

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $5,769,640.98

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $1,595,416.67
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                             <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $2,864,445.50

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $303,780.50

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                     $86,736.92

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>


     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer


<PAGE>   1
                                                                    EXHIBIT (Q)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1998-2 Monthly Statement
                      Class A Certificate CUSIP #25466KBP3
                      Class B Certificate CUSIP #25466KBQ1

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of March 4, 1998 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1998-2 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1998-2                                      Total           Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.800000000%        $4.833333333      $4.833333333        $0.000000000

         Class B      30 days at 5.950000000%        $4.958333333      $4.958333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1998-2 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                  Finance Charge          Principal       Yield Collections /
                                                                   Collections           Collections       Additional Funds

 <S>                                                              <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                                $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                            $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                         $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                          $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1998-2 Allocations                                      $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                            $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                              $433,784.56          $4,090,296.10            $0.00
</TABLE>
<PAGE>   2

<TABLE>
<S>                                                                                                                     <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                                16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                       Deposits into the      Deficit Amount
                         SPFAs on this           on this                  SPFA          Investment
                       Distribution Date     Distribution Date           Balance          Income

     <S>                      <C>                   <C>                   <C>             <C>
     Series 1998-2             $0.00                 0.00                  $0.00           $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                Total Payments
                         Amount Paid on this         Deficit Amount              through this
                          Distribution Date     on this Distribution Date      Distribution Date

     <S>                          <C>                       <C>                     <C>
     Series 1998-2                 $0.00                     $0.00                   $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                         Deposits into the SIFA
                                         on this Distribution Date           SIFA Balance

     <S>                                  <C>                               <C>
     Series 1998-2                         $2,547,150.17                     $2,547,150.17
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                              Cumulative Investor
                                      This Distribution Date   Charged-Off Amount

 <S>                                     <C>                       <C>
 (a) Group One                            $94,095,541.69            $0.00

 (b) Group Two                            $13,551,969.61            $0.00

 (c) Series 1998-2                         $2,797,096.72            $0.00

 (d) Class A                               $2,657,248.94            $0.00

     Class B                                 $139,847.78            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                   6.38%             N/A
</TABLE>
<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1998-2                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                             As a percentage of
                                              Total        Class A Invested Amount

     <S>                                 <C>                    <C>
     Series 1998-2 Class B                $44,736,860.00         8.9474%
</TABLE>
<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                 Shared Amount     Class B Amount

 <S>                                                  <C>        <C>
 (a) Maximum Amount                                    $0.00      $21,052,640.00

 (b) Available Amount                                  $0.00      $21,052,640.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                       $0.00               $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                               $6,246.33
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                         Delinquent Amount       Percentage of Ending
     Payment Status      Ending Balance          Receivables Outstanding

     <S>                <C>                             <C>
     30-59 days            $762,163,223.55               2.83%

     60-179 days         $1,221,238,653.49               4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1998-2 (3)                           5.58%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------

     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                            Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1998-2 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of March  4, 1998 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1998-2 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                           <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>
<PAGE>   6

<TABLE>
<S>                                                                                                               <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1
                                                                    EXHIBIT (R)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1998-3 Monthly Statement
                      Class A Certificate CUSIP #25466KBR9
                      Class B Certificate CUSIP #25466KBS7

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of March 25, 1998 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1998-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1998-3                                      Total            Interest           Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.505000000%        $4.587500000      $4.587500000        $0.000000000

         Class B      30 days at 5.670000000%        $4.725000000      $4.725000000        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1998-3 Investor Interest                       $789,474,000.00

 (e) Class A Investor Interest                             $750,000,000.00

     Class B Investor Interest                              $39,474,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                 Finance Charge          Principal      Yield Collections /
                                                                  Collections           Collections     Additional Funds

 <S>                                                           <C>                  <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                              $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                          $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                       $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                        $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1998-3 Allocations                                   $13,014,412.09        $122,717,137.83            $0.00

 (e) Class A Allocations                                         $12,363,516.40        $116,579,629.96            $0.00

     Class B Allocations                                            $650,895.69          $6,137,507.87            $0.00
</TABLE>
<PAGE>   2

<TABLE>
<S>                                                                                                              <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                           1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                          16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the        Deficit Amount
                          SPFAs on this            on this              SPFA          Investment
                        Distribution Date       Distribution Date      Balance          Income

     <S>                        <C>                     <C>             <C>             <C>
     Series 1998-3               $0.00                   0.00            $0.00           $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                               Total Payments
                           Amount Paid on this          Deficit Amount          through this
                          Distribution Date on     this Distribution Date     Distribution Date

     <S>                          <C>                         <C>                   <C>
     Series 1998-3                 $0.00                       $0.00                 $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                         Deposits into the SIFA
                                         on this Distribution Date      SIFA Balance

     <S>                                      <C>                          <C>
     Series 1998-3                             $3,627,139.65                $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                              Cumulative Investor
                                      This Distribution Date   Charged-Off Amount

 <S>                                       <C>                     <C>
 (a) Group One                              $94,095,541.69          $0.00

 (b) Group Two                              $13,551,969.61          $0.00

 (c) Series 1998-3                           $4,195,715.64          $0.00

 (d) Class A                                 $3,985,873.41          $0.00

     Class B                                   $209,842.23          $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                     6.38%           N/A
</TABLE>
<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1998-3                                         $1,315,790.00

 (d) Class A                                               $1,250,000.00

     Class B                                                  $65,790.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                              As a percentage of
                                              Total         Class A Invested Amount

     <S>                                 <C>                    <C>
     Series 1998-3 Class B                $98,684,250.00         13.1579%
</TABLE>
<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                 Shared Amount      Class B Amount

 <S>                                                  <C>         <C>
 (a) Maximum Amount                                    $0.00       $59,210,550.00

 (b) Available Amount                                  $0.00       $59,210,550.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                       $0.00                $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                               $28,669.78
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount       Percentage of Ending
     Payment Status                Ending Balance          Receivables Outstanding

     <S>                           <C>                            <C>
     30-59 days                       $762,163,223.55              2.83%

     60-179 days                    $1,221,238,653.49              4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1998-3 (3)                           5.85%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------

     <S>                                                                       <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                  5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------
 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5

                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1998-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of March 25, 1998 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1998-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                           <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $116,579,629.96

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $12,363,516.40

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $3,440,625.00
</TABLE>
<PAGE>   6

<TABLE>
<S>                                                                                                               <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $6,137,507.87

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $650,895.69

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $186,514.65

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                              as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1
                                                                    EXHIBIT (S)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1998-4 Monthly Statement
                      Class A Certificate CUSIP #25466KBT5
                      Class B Certificate CUSIP #25466KBU2

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of April 9, 1998 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1998-4 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1998-4                                       Total          Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.750000000%        $4.791666667      $4.791666667        $0.000000000

         Class B      30 days at 5.900000000%        $4.916666667      $4.916666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1998-4 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections /
                                                                    Collections            Collections      Additional Funds

 <S>                                                               <C>                 <C>                          <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                          $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                           $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1998-4 Allocations                                       $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                             $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                               $433,784.56          $4,090,296.10            $0.00
</TABLE>
<PAGE>   2

<TABLE>
<S>                                                                                                     <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                 1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                                16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the            Deficit Amount
                          SPFAs on this                 on this            SPFA          Investment
                        Distribution Date          Distribution Date      Balance         Income

     <S>                       <C>                         <C>            <C>              <C>
     Series 1998-4              $0.00                       0.00           $0.00            $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                                   Total Payments
                         Amount Paid on this           Deficit Amount               through this
                          Distribution Date       on this Distribution Date       Distribution Date

     <S>                          <C>                            <C>                      <C>
     Series 1998-4                 $0.00                          $0.00                    $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                         Deposits into the SIFA
                                         on this Distribution Date      SIFA Balance

     <S>                                  <C>                              <C>
     Series 1998-4                         $2,525,220.33                    $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                      Cumulative Investor
                                            This Distribution Date     Charged-Off Amount

 <S>                                             <C>                       <C>
 (a) Group One                                    $94,095,541.69            $0.00

 (b) Group Two                                    $13,551,969.61            $0.00

 (c) Series 1998-4                                 $2,797,096.72            $0.00

 (d) Class A                                       $2,657,248.94            $0.00

     Class B                                         $139,847.78            $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                           6.38%             N/A
</TABLE>
<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1998-4                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                               As a percentage of
                                              Total          Class A Invested Amount

     <S>                                 <C>                      <C>
     Series 1998-4 Class B                $44,736,860.00           8.9474%
</TABLE>
<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                                 Shared Amount      Class B Amount

 <S>                                                  <C>         <C>
 (a) Maximum Amount                                    $0.00       $21,052,640.00

 (b) Available Amount                                  $0.00       $21,052,640.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                       $0.00                $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                                $6,246.34
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount               Percentage of Ending
     Payment Status                Ending Balance                  Receivables Outstanding

     <S>                            <C>                                    <C>
     30-59 days                       $762,163,223.55                       2.83%

     60-179 days                    $1,221,238,653.49                       4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                            <C>
 (a) Group One (2)                               5.67%

 (b) Group Two (2)                               5.84%

 (c) Series 1998-4 (3)                           5.63%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------

     <S>                                                                        <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999                   5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- -------------------------------------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1998-4 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of April 9, 1998 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1998-4 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                           <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class A Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class A Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class A Investor Interest is equal to                                                        $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                 $14,374,999.98
</TABLE>
<PAGE>   6

<TABLE>
<S>                                                                                                               <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

     (a)  with respect to the Class B Required Amount Shortfall                                                            $0.00
          is equal to

     (b)  with respect to the Class B Cumulative Investor Charged-Off                                                      $0.00
          Amount is equal to

     (c)  with respect to the Class B Investor Interest is equal to                                                        $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $776,322.00

14.  Attached hereto is a true copy of the statement required to be delivered by
     the Master Servicer on the date of this Certificate to the Trustee pursuant to
     Section 16 of the Series Supplement.
</TABLE>


     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1
                                                                     EXHIBIT (T)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1998-6 Monthly Statement
                      Class A Certificate CUSIP #25466KBY4
                      Class B Certificate CUSIP #25466KBZ1

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of July 30, 1998 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1998-6 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1998-6                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.850000000%        $4.875000000      $4.875000000        $0.000000000

         Class B      30 days at 6.050000000%        $5.041666667      $5.041666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1998-6 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds
     <S>                                                           <C>                   <C>                <C>
 (a) Allocation of Collections between Investors and Seller

     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1998-6 Allocations                                        $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                              $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                                $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1998-6           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1998-6                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                         <C>
     Series 1998-6                         $2,570,176.50        $7,710,529.50
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                                Cumulative
                                                            Investor Charged-Off
                                    This Distribution Date        Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1998-6                       $2,797,096.72              $0.00

 (d) Class A                             $2,657,248.94              $0.00

     Class B                               $139,847.78              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1998-6 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of July 30, 1998 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1998-6 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   4

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer
<PAGE>   5

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-6                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-6                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-6                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1998-6                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                  <C>
     Series 1998-6 Class B                $44,736,860.00       8.9474%
</TABLE>

<PAGE>   6

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $21,052,640.00

 (b) Available Amount                              $0.00   $21,052,640.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $10,193.56
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1998-6 (3)                                                5.52%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   1

                                                                     EXHIBIT (U)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1998-7 Monthly Statement
                      Class A Certificate CUSIP #25466KCA5
                      Class B Certificate CUSIP #25466KCB3

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of November 12, 1998 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1998-7 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1998-7                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.600000000%        $4.666666667      $4.666666667        $0.000000000

         Class B      30 days at 5.900000000%        $4.916666667      $4.916666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1998-7 Investor Interest                     $1,052,632,000.00

 (e) Class A Investor Interest                           $1,000,000,000.00

     Class B Investor Interest                              $52,632,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds

 (a) Allocation of Collections between Investors and Seller

     <S>                                                           <C>                  <C>                          <C>
     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1998-7 Allocations                                       $17,352,257.65        $163,620,098.81            $0.00

 (e) Class A Allocations                                             $16,484,688.54        $155,439,506.61            $0.00

     Class B Allocations                                                $867,569.11          $8,180,592.20            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1998-7           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1998-7                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                          <C>
     Series 1998-7                         $4,925,440.67        $24,627,203.35
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                             Cumulative Investor
                                    This Distribution Date   Charged-Off Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1998-7                       $5,594,193.45              $0.00

 (d) Class A                             $5,314,497.89              $0.00

     Class B                               $279,695.56              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-7                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-7                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1998-7                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1998-7                                         $1,754,386.67

 (d) Class A                                               $1,666,666.67

     Class B                                                  $87,720.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                  <C>
     Series 1998-7 Class B                $89,473,720.00       8.9474%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $42,105,280.00

 (b) Available Amount                              $0.00   $42,105,280.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $24,773.37
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1998-7 (3)                                                5.76%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1998-7 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of November 12, 1998 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1998-7 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $155,439,506.61

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $16,484,688.54

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $8,180,592.20

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $867,569.11

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                     EXHIBIT (V)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1999-1 Monthly Statement
                      Class A Certificate CUSIP #25466KCC1
                      Class B Certificate CUSIP #25466KCD9

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of February  9, 1999 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1999-1 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1999-1                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.300000000%        $4.416666667      $4.416666667        $0.000000000

         Class B      30 days at 5.550000000%        $4.625000000      $4.625000000        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1999-1 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds

 (a) Allocation of Collections between Investors and Seller

     <S>                                                           <C>                  <C>                          <C>
     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1999-1 Allocations                                        $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                              $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                                $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1999-1           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1999-1                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                          <C>
     Series 1999-1                  $2,330,044.83               $4,660,089.66
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                             Cumulative Investor
                                    This Distribution Date   Charged-Off Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1999-1                       $2,797,096.72              $0.00

 (d) Class A                             $2,657,248.94              $0.00

     Class B                               $139,847.78              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-1                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1999-1                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                  <C>
     Series 1999-1 Class B                $44,736,860.00       8.9474%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $21,052,640.00

 (b) Available Amount                              $0.00   $21,052,640.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                        $8,742.95
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1999-1 (3)                                                6.07%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1999-1 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of February  9, 1999 (the "Series Supplement")
by and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1999-1 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                     EXHIBIT (W)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1999-2 Monthly Statement
                      Class A Certificate CUSIP #25466KCE7
                      Class B Certificate CUSIP #25466KCF4

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of March 10, 1999 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1999-2 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1999-2                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.900000000%        $4.916666667      $4.916666667        $0.000000000

         Class B      30 days at 6.100000000%        $5.083333333      $5.083333333        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1999-2 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds

 (a) Allocation of Collections between Investors and Seller

     <S>                                                           <C>                  <C>                          <C>
     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1999-2 Allocations                                        $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                              $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                                $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1999-2           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1999-2                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                          <C>
     Series 1999-2                         $2,592,106.33            $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                             Cumulative Investor
                                    This Distribution Date   Charged-Off Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1999-2                       $2,797,096.72              $0.00

 (d) Class A                             $2,657,248.94              $0.00

     Class B                               $139,847.78              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-2                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1999-2                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                  <C>
     Series 1999-2 Class B                $44,736,860.00       8.9474%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $21,052,640.00

 (b) Available Amount                              $0.00   $21,052,640.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                        $8,169.84
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1999-2 (3)                                                5.48%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5


                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1999-2 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of March 10, 1999 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1999-2 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                 $17,618,055.54
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $958,706.50

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                     EXHIBIT (X)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1999-3 Monthly Statement
                      Class A Certificate CUSIP #25466KCG2
                      Class B Certificate CUSIP #25466KCH0

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of April  6, 1999 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1999-3 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1999-3                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.490000000%        $4.575000000      $4.575000000        $0.000000000

         Class B      30 days at 5.690000000%        $4.741666667      $4.741666667        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1999-3 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds

 (a) Allocation of Collections between Investors and Seller

     <S>                                                           <C>                  <C>                          <C>
     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1999-3 Allocations                                        $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                              $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                                $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1999-3           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1999-3                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                          <C>
     Series 1999-3                         $2,412,281.70            $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                             Cumulative Investor
                                    This Distribution Date   Charged-Off Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1999-3                       $2,797,096.72              $0.00

 (d) Class A                             $2,657,248.94              $0.00

     Class B                               $139,847.78              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-3                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1999-3                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                 <C>
     Series 1999-3 Class B                $65,789,500.00      13.1579%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $39,473,700.00

 (b) Available Amount                              $0.00   $39,473,700.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $15,318.46
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1999-3 (3)                                                5.87%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5

                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1999-3 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of April  6, 1999 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1999-3 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $2,287,500.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $124,781.70

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                     EXHIBIT (Y)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1999-4 Monthly Statement
                      Class A Certificate CUSIP #25466KCJ6
                      Class B Certificate CUSIP #25466KCK3

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of April 27, 1999 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1999-4 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1999-4                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.650000000%        $4.708333333      $4.708333333        $0.000000000

         Class B      30 days at 5.850000000%        $4.875000000      $4.875000000        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1999-4 Investor Interest                       $894,737,000.00

 (e) Class A Investor Interest                             $850,000,000.00

     Class B Investor Interest                              $44,737,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds

 (a) Allocation of Collections between Investors and Seller

     <S>                                                           <C>                  <C>                          <C>
     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1999-4 Allocations                                       $14,749,550.32        $139,078,322.22            $0.00

 (e) Class A Allocations                                             $14,011,985.26        $132,123,580.62            $0.00

     Class B Allocations                                                $737,565.06          $6,954,741.60            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1999-4           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1999-4                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                          <C>
     Series 1999-4                         $4,220,176.21        $23,632,986.78
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                             Cumulative Investor
                                    This Distribution Date   Charged-Off Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1999-4                       $4,755,106.76              $0.00

 (d) Class A                             $4,517,323.20              $0.00

     Class B                               $237,783.56              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-4                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1999-4                                         $1,491,228.34

 (d) Class A                                               $1,416,666.67

     Class B                                                  $74,561.67
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                  <C>
     Series 1999-4 Class B                $76,052,645.00       8.9474%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $35,789,480.00

 (b) Available Amount                              $0.00   $35,789,480.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $13,888.72
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1999-4 (3)                                                5.73%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.
<PAGE>   5



                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1999-4 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of April 27, 1999 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1999-4 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                 $132,123,580.62

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                           $14,011,985.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $6,954,741.60

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $737,565.06

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                          $0.00

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer

<PAGE>   1

                                                                     EXHIBIT (Z)

                     MONTHLY CERTIFICATEHOLDERS' STATEMENT
                          Discover Card Master Trust I
                        Series 1999-5 Monthly Statement
                      Class A Certificate CUSIP #25466KCL1
                      Class B Certificate CUSIP #25466KCM9

Distribution Date: October 15, 1999            Month Ending:  September 30, 1999

Pursuant to the Series Supplement dated as of June 15, 1999 relating to the
Pooling and Servicing Agreement dated as of October 1, 1993 by and between
Greenwood Trust Company and U.S. Bank National Association, as Trustee, as
amended, the Trustee is required to prepare certain information each month
regarding current distributions to investors and the performances of the Trust.
We have set forth below this information for the Distribution Date listed
above, as well as for the calendar month ended on the date listed above.

<TABLE>
<CAPTION>
1.   Payments for the benefit of investors in Series 1999-5 on this Distribution Date (per $1000 of Class Initial Investor Interest)
     -------------------------------------------------------------------------------------------------------------------------------

     Series  1999-5                                     Total            Interest            Principal
         <S>         <C>                            <C>               <C>                 <C>
         Class A      30 days at 5.560000000%        $4.633333333      $4.633333333        $0.000000000

         Class B      30 days at 5.790000000%        $4.825000000      $4.825000000        $0.000000000
</TABLE>

<TABLE>
<CAPTION>
2.   Principal Receivables at the end of September, 1999
     ---------------------------------------------------

 <S>                                                   <C>
 (a) Aggregate Investor Interest                        $19,465,953,000.00

     Seller Interest                                     $7,070,534,064.40

     Total Master Trust                                 $26,536,487,064.40

 (b) Group One Investor Interest                        $16,915,953,000.00

 (c) Group Two Investor Interest                         $2,550,000,000.00

 (d) Series 1999-5 Investor Interest                       $526,316,000.00

 (e) Class A Investor Interest                             $500,000,000.00

     Class B Investor Interest                              $26,316,000.00
</TABLE>

<TABLE>
<CAPTION>
3.   Allocation of Receivables Collected During September, 1999
     ----------------------------------------------------------

                                                                   Finance Charge           Principal       Yield Collections/
                                                                    Collections            Collections      Additional Funds

 (a) Allocation of Collections between Investors and Seller

     <S>                                                           <C>                  <C>                          <C>
     Aggregate Investor Allocation.                                 $333,904,676.22      $3,148,496,134.64            $0.00

     Seller Allocation:                                             $103,819,395.28        $978,946,951.05            $0.00

 (b) Group One Allocation                                           $291,868,720.47      $2,752,125,392.80            $0.00

 (c) Group Two Allocation                                            $42,035,955.75        $396,370,741.84            $0.00

 (d) Series 1999-5 Allocations                                        $8,676,128.82         $81,810,049.40            $0.00

 (e) Class A Allocations                                              $8,242,344.26         $77,719,753.30            $0.00

     Class B Allocations                                                $433,784.56          $4,090,296.10            $0.00
</TABLE>

<PAGE>   2

<TABLE>
<S>                                                                                            <C>
 (f) Principal Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        15.30%

 (g) Finance Charge Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                         1.62%

 (h) Total Collections as a monthly percentage of Master Trust Receivables
     at the beginning of September, 1999                                                        16.92%
</TABLE>

<TABLE>
<CAPTION>
4.   Information Concerning the Series Principal Funding Accounts ("SPFA")
     ---------------------------------------------------------------------

                        Deposits into the     Deficit Amount
                        SPFAs on this             on this              SPFA       Investment
                        Distribution Date     Distribution Date       Balance       Income

     <S>               <C>                    <C>                    <C>          <C>
     Series 1999-5           $0.00                  0.00                $0.00         $0.00
</TABLE>

<TABLE>
<CAPTION>
5.   Information Concerning Amount of Controlled Liquidation Payments
     ----------------------------------------------------------------
                                                                           Total Payments
                         Amount Paid on this      Deficit Amount            through this
                          Distribution Date    on this Distribution Date  Distribution Date

     <S>                <C>                    <C>                        <C>
     Series 1999-5                 $0.00                          $0.00             $0.00
</TABLE>

<TABLE>
<CAPTION>
6.   Information Concerning the Series Interest Funding Accounts ("SIFA")
     --------------------------------------------------------------------

                                     Deposits into the SIFA
                                   on this Distribution Date    SIFA Balance

     <S>                           <C>                          <C>
     Series 1999-5                         $2,443,641.37            $0.00
</TABLE>

<TABLE>
<CAPTION>
7.   Pool Factors for September, 1999
     --------------------------------

     <S>                                                    <C>
     Class A                                                 1.00000000

     Class B                                                 1.00000000
</TABLE>

<TABLE>
<CAPTION>
8.   Investor Charged-Off Amount
     ---------------------------
                                                             Cumulative Investor
                                    This Distribution Date   Charged-Off Amount

 <S>                                   <C>                         <C>
 (a) Group One                          $94,095,541.69              $0.00

 (b) Group Two                          $13,551,969.61              $0.00

 (c) Series 1999-5                       $2,797,096.72              $0.00

 (d) Class A                             $2,657,248.94              $0.00

     Class B                               $139,847.78              $0.00

 (e) As an annualized percentage of
     Principal Receivables at the
     beginning of September, 1999                 6.38%               N/A
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
9.   Investor Losses on this Distribution Date
     -----------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-5                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
10.  Reimbursement of Investor Losses on this Distribution Date
     ----------------------------------------------------------
                                                           Per $1,000 of original
                                                 Total       invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-5                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
11.  Aggregate Amount of Unreimbursed Investor Losses
     ------------------------------------------------
                                                             Per $1,000 of original
                                                 Total         invested Principal

 <S>                                              <C>            <C>
 (a) Group One                                     $0.00          $0.00

 (b) Group Two                                     $0.00          $0.00

 (c) Series 1999-5                                 $0.00          $0.00

 (d) Class A                                       $0.00          $0.00

     Class B                                       $0.00          $0.00
</TABLE>

<TABLE>
<CAPTION>
12.  Investor Monthly Servicing Fee payable on this Distribution Date
     ----------------------------------------------------------------

 <S>                                                     <C>
 (a) Group One                                            $29,509,044.98

 (b) Group Two                                             $4,250,000.00

 (c) Series 1999-5                                           $877,193.33

 (d) Class A                                                 $833,333.33

     Class B                                                  $43,860.00
</TABLE>

<TABLE>
<CAPTION>
13.  Class Available Subordinated Amount at the end of the Distribution Date
     -----------------------------------------------------------------------

                                                           As a percentage of
                                              Total      Class A Invested Amount

     <S>                                 <C>                 <C>
     Series 1999-5 Class B                $65,789,500.00      13.1579%
</TABLE>

<PAGE>   4

<TABLE>
<CAPTION>
14.  Total Available Credit Enhancement Amounts
     ------------------------------------------

                                             Shared Amount  Class B Amount

 <S>                                              <C>     <C>
 (a) Maximum Amount                                $0.00   $39,473,700.00

 (b) Available Amount                              $0.00   $39,473,700.00

 (c) Amount of Drawings on Credit Enhancement
       on this Distribution Date                   $0.00            $0.00

 (d) Credit Enhancement Fee on this
       Distribution Date                                       $25,188.62
</TABLE>

<TABLE>
<CAPTION>
15.  Delinquency Summary
     -------------------

     Master Trust Receivables Outstanding at the end of September, 1999      $26,958,265,630.37

                                   Delinquent Amount         Percentage of Ending
     Payment Status                Ending Balance            Receivables Outstanding
     <S>                       <C>                           <C>
     30-59 days                     $762,163,223.55                   2.83%

     60-179 days                  $1,221,238,653.49                   4.53%
</TABLE>

<TABLE>
<CAPTION>
16.  Excess Spread Percentages on this Distribution Date (1)
     -------------------------------------------------------

 <S>                                                                 <C>
 (a) Group One (2)                                                    5.67%

 (b) Group Two (2)                                                    5.84%

 (c) Series 1999-5 (3)                                                5.78%
</TABLE>

<TABLE>
<CAPTION>
17.  Net Charge-Offs on this Distribution Date (4)
     ---------------------------------------------
     <S>                                                                <C>
     Charge-offs net of recoveries as an annualized percentage of
     Principal Receivables at the beginning of September, 1999          5.63%
</TABLE>

                                 U.S. BANK NATIONAL ASSOCIATION
                                 as Trustee

                              BY:
                                 -------------------------------------

                                        Vice President

- --------------------

 (1) For series in Group One, investors should refer only to the higher of the
     Group Excess Spread Percentage (Item 16(a)) and the Series Excess Spread
     Percentage (Item 16(c)) in assessing the current performance of the Trust
     and the Receivables.


 (2) Group Excess Spread is the sum of the Series Excess Spreads (as described
     below) for each series in the Group.  The Group Excess Spread Percentage
     is equal to the Group Excess Spread, multiplied by twelve, divided by the
     Series Investor Interests for each series in the Group.

 (3) Series Excess Spread is the difference between (a) the sum of Finance
     Charge Collections, Yield Collections, Additional Funds and Investment
     Income for any Class of this Series (see Item 3(e)), and (b) the sum of
     (i) the monthly interest for each Class of this Series (see Item 1), (ii)
     the monthly servicing fee for each Class of this Series (see Item 12(d)),
     (iii) the Investor Charge-Off Amount (see Item 8(c)), and (iv) the Credit
     Enhancement Fee (see Item 14(d)), in each case for this Distribution Date.
     The Series Excess Spread Percentage is equal to the Series Excess Spread,
     multiplied by twelve, divided by the Series Investor Interest for this
     Series.

 (4) For purposes of allocations to investors, recoveries are treated as
     Finance Charge Collections and are included as such in Item 3 above.

<PAGE>   5

                    MASTER SERVICER'S CERTIFICATE STATEMENT

                          Discover Card Master Trust I

                        Series 1999-5 Monthly Statement

                                  CREDIT CARD
                           PASS-THROUGH CERTIFICATES

     The undersigned, a duly authorized representative of Greenwood Trust
Company ("Greenwood"), as Master Servicer pursuant to the Pooling & Servicing
Agreement dated as of October 1, 1993 (the"Pooling & Servicing Agreement") and
the Series Supplement, dated as of June 15, 1999 (the "Series Supplement") by
and between Greenwood and U.S. Bank National Association, as Trustee, does
hereby certify as follows with respect to the Supplement Discover Card Master
Trust I, Series 1999-5 Master Trust Certificates for the Distribution Date
occurring on October 15, 1999:

<TABLE>
<S>                                                                                                  <C>
 1.  Greenwood is Master Servicer under the Pooling and Servicing Agreement.

 2.  The undersigned is a Servicing Officer of Greenwood as Master Servicer.

 3.  The aggregate amount of Collections processed during September, 1999
     is equal to                                                                                               $4,565,167,157.18

 4.  The aggregate amount of Class A Principal Collections processed during
     September, 1999 is equal to                                                                                  $77,719,753.30

 5.  The aggregate amount of Class A Finance Charge Collections processed
     during September, 1999 is equal to                                                                            $8,242,344.26

 6a. The aggregate amount of Class A Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

 6b. The aggregate amount of Class A Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

 7.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class A Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class A Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class A Investor Interest is equal to                                                       $0.00

 8.  The sum of all amounts payable to the Class A Certificateholders
     on the current Distribution Date is equal to                                                                  $2,316,666.67
</TABLE>

<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
 9.  The aggregate amount of Class B Principal Collections processed during
     September, 1999 is equal to                                                                                   $4,090,296.10

10.  The aggregate amount of Class B Finance Charge Collections processed
     during September, 1999 is equal to                                                                              $433,784.56

11a. The aggregate amount of Class B Principal Collections recharacterized as
     Series Yield Collections during September, 1999 is equal to                                                           $0.00

11b. The aggregate amount of Class B Additional Funds for this Distribution
     date is equal to                                                                                                      $0.00

12.  The amount of drawings under the Credit Enhancement required to be
     made on the related Drawing Date pursuant to the Series Supplement:

      (a)  with respect to the Class B Required Amount Shortfall                                                           $0.00
           is equal to

      (b)  with respect to the Class B Cumulative Investor Charged-Off                                                     $0.00
           Amount is equal to

      (c)  with respect to the Class B Investor Interest is equal to                                                       $0.00

13.  The sum of all amounts payable to the Class B Certificateholders
     on the current Distribution Date is equal to                                                                    $126,974.70

14.  Attached hereto is a true copy of the statement required to be delivered
     by the Master Servicer on the date of this Certificate to the Trustee
     pursuant to Section 16 of the Series Supplement.
</TABLE>

     IN WITNESS WHEREOF, the undersigned has duly executed and delivered
certificate this 15th day of October, 1999.

                           GREENWOOD TRUST COMPANY
                                as Master Servicer

                           By:
                              -------------------------------------
                           Vice President, Chief Accounting Officer,
                           and Treasurer



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission