CITIBANK SOUTH DAKOTA N A
8-K, 1999-05-20
ASSET-BACKED SECURITIES
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                       SECURITIES AND EXCHANGE COMMISSION

                             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): May 17, 1999
                      ------------------------------------


                          CITIBANK (SOUTH DAKOTA), N.A.
                                  ON BEHALF OF
                       CITIBANK CREDIT CARD MASTER TRUST I
          (Issuer in respect of the Citibank Credit Card Master Trust I
       5.95% Class A Credit Card Participation Certificates, Series 1993-2
       6.15% Class B Credit Card Participation Certificates, Series 1993-2
       7.25% Class A Credit Card Participation Certificates, Series 1994-2
       7.50% Class B Credit Card Participation Certificates, Series 1994-2
       8.25% Class A Credit Card Participation Certificates, Series 1994-4
       8.25% Class A Credit Card Participation Certificates, Series 1995-1
       8.45% Class B Credit Card Participation Certificates, Series 1995-1
       7.85% Class A Credit Card Participation Certificates, Series 1995-3
       6.55% Class A Credit Card Participation Certificates, Series 1995-9
       6.65% Class B Credit Card Participation Certificates, Series 1995-9
    Zero Coupon Class A Credit Card Participation Certificates, Series 1996-1
    Zero Coupon Class B Credit Card Participation Certificates, Series 1996-1
   Floating Rate Class A Credit Card Participation Certificates, Series 1996-5
   Floating Rate Class B Credit Card Participation Certificates, Series 1996-5
   Floating Rate Class A Credit Card Participation Certificates, Series 1996-6
   Floating Rate Class B Credit Card Participation Certificates, Series 1996-6

                                                       (cover page 1 of 2 pages)
                                       1
<PAGE>

       6.55% Class A Credit Card Participation Certificates, Series 1997-2
       6.70% Class B Credit Card Participation Certificates, Series 1997-2
      6.839% Class A Credit Card Participation Certificates, Series 1997-3
      6.989% Class B Credit Card Participation Certificates, Series 1997-3
   Floating Rate Class A Credit Card Participation Certificates, Series 1997-4
   Floating Rate Class B Credit Card Participation Certificates, Series 1997-4
    Zero Coupon Class A Credit Card Participation Certificates, Series 1997-6
    Zero Coupon Class B Credit Card Participation Certificates, Series 1997-6
       6.35% Class A Credit Card Participation Certificates, Series 1997-7
       6.45% Class B Credit Card Participation Certificates, Series 1997-7
   Floating Rate Class A Credit Card Participation Certificates, Series 1997-8
  Floating Rate Class A Credit Card Participation Certificates, Series 1997-10
  Floating Rate Class B Credit Card Participation Certificates, Series 1997-10
       5.75% Class A Credit Card Participation Certificates, Series 1998-1
      5.875% Class B Credit Card Participation Certificates, Series 1998-1
       6.05% Class A Credit Card Participation Certificates, Series 1998-2
       6.20% Class B Credit Card Participation Certificates, Series 1998-2
       5.80% Class A Credit Card Participation Certificates, Series 1998-3
       5.95% Class B Credit Card Participation Certificates, Series 1998-3
       5.85% Class A Credit Card Participation Certificates, Series 1998-6
       6.00% Class B Credit Card Participation Certificates, Series 1998-6
   Floating Rate Class A Credit Card Participation Certificates, Series 1998-7
   Floating Rate Class B Credit Card Participation Certificates, Series 1998-7
       5.30% Class A Credit Card Participation Certificates, Series 1998-9
       5.55% Class B Credit Card Participation Certificates, Series 1998-9
       5.50% Class A Credit Card Participation Certificates, Series 1999-1
       5.75% Class B Credit Card Participation Certificates, Series 1999-1
      5.875% Class A Credit Card Participation Certificates, Series 1999-2
       6.15% Class B Credit Card Participation Certificates, Series 1999-2
   Floating Rate Class A Credit Card Participation Certificates, Series 1999-3
   Floating Rate Class B Credit Card Participation Certificates, Series 1999-3
                       (collectively, the "Certificates"))

               (Exact name of registrant as specified in charter)


                            UNITED STATES OF AMERICA
                 (State or other jurisdiction of incorporation)

                                   46-0358360
                      (I.R.S. Employer Identification No.)


      33-41055, 33-43576, 33-62180, 33-77802, 33-84834, 33-97664, 33-99328
                                  and 333-38803
                              (Commission File No.)


    701 EAST 60TH STREET, NORTH
     SIOUX FALLS, SOUTH DAKOTA                              57117
(Address of principal executive offices)                  (Zip Code)


        Registrant's telephone number, including area code (605) 331-2626

                                 NOT APPLICABLE
          (Former name or former address, if changed since last report)

                            (cover page 2 of 2 pages)

                                       2
<PAGE>

ITEM 5. OTHER EVENTS.

     Set forth below is the monthly report and servicer's  certificate  for each
Series  referenced on the cover page of this Form 8-K (each, a "Monthly Report")
for the Due Period ending  April 27, 1999 and the related  Distribution  Date
delivered  pursuant to Section 5.02 of the applicable  Series  Supplement to the
Pooling and Servicing Agreement (together, the "Agreement") relating to Citibank
Credit Card Master Trust I, among Citibank (South  Dakota),  N.A., as Seller and
Servicer,  Citibank (Nevada), National Association, as Seller, and Bankers Trust
Company (as  successor to Yasuda Bank and Trust Company  (U.S.A.)),  as Trustee.
Each Monthly Report contains information  relating to the distribution,  if any,
to Certificateholders of the related Series on the referenced  Distribution Date
as well as information  relating to the  Receivables and the Accounts from which
the Receivables have arisen.  Capitalized terms used but not defined herein have
the meanings set forth in the Agreement.


                                       3
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                      CITIBANK CREDIT CARD MASTER TRUST I
                    For the Due Period Ending April 27, 1999

==============================================================================

This Certificate relates to the Due Period ending April 27, 1999 and the
related Distribution Date.

A.   Information Regarding the portfolio
     -----------------------------------

1. Portfolio Yield ........................................            12.02%

       Yield Component  ...................................            16.61%

       Credit Loss Component  .............................             4.59%

2. New Purchase Rate  .....................................            23.10%

3. Total Payment Rate  ....................................            22.06%

4. Principal Payment  Rate  ................................           21.09%

5. Aggregate Amount of Principal Receivables in the Trust :

     Beginning of Due Period  ............................  $  43,311,583,108

     Average  ............................................  $  43,451,094,903

     Lump Sum Addition  ..................................  $               0

     End of Due Period  ..................................  $  43,694,523,202

6. Delinquencies (Aggregate outstanding balances in the Accounts that
   were delinquent by the time periods listed below as of the close of
   business of the month preceding the Distribution Date, as a percentage
   of aggregate Receivables as of the last day of the Due Period) :

       Current  ..........................................  $  40,379,611,795
         5-34 days delinquent  ...........................  $   2,281,211,410
        35-64 days delinquent  ...........................  $     605,138,120
        65-94 days delinquent  ...........................  $     340,273,610
       95-124 days delinquent  ...........................  $     272,653,177
      125-154 days delinquent  ...........................  $     225,637,270
      155-184 days delinquent  ...........................  $     185,104,557

      Current  ...........................................             91.17%
         5-34 days delinquent  ...........................              5.15%
        35-64 days delinquent  ...........................              1.37%
        65-94 days delinquent  ...........................              0.77%
       95-124 days delinquent  ...........................              0.62%
      125-154 days delinquent  ...........................              0.51%
      155-184 days delinquent  ...........................              0.41%


                                       4
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 CITIBANK CREDIT CARD MASTER TRUST I - GROUP 1
                    For the Due Period Ending April 27, 1999

==============================================================================

                                             Current Due   Current Due
                                            Period on an   Period on a
                                        Actual Basis (1)   Standard Basis (1)
B. Information Regarding Group 1
   -----------------------------
  (Percentage Basis)

  1. Portfolio Yield                              12.02%             12.02%
  2. Weighted Average Certificate Rate             5.81%              5.81%
  3. Weighted Average Investor Fee Rates
         Fixed Servicing Fee                       0.37%              0.37%
         Others                                    0.08%              0.08%
  4. Surplus Finance Charge Collections            5.76%              5.76%
  5. Required Surplus Finance Charge Amount        0.00%              0.00%
  6. Aggregate Surplus Finance Charge Amount       5.76%              5.76%
     minus Required Surplus Finance Charge Amount

C. Information Regarding Group 1
   -----------------------------
  (Dollars Basis)

  1. Total Investor Collections                 $ 7,491,993,247 $ 7,491,993,247
         Principal Collections                  $ 7,005,974,524 $ 7,005,974,524
         Finance Charge Collections             $   486,018,723 $   486,018,723
  2. Investor Default Amount                    $   133,839,371 $   133,839,371
  3. Investor Monthly Interest                  $   164,962,331 $   164,962,331
  4. Investor Monthly Fees
         Fixed Servicing Fees                   $    10,243,701 $    10,243,701
         Others                                 $     2,404,764 $     2,404,764
  5. Surplus Finance Charge Collections         $   174,568,556 $   174,568,556
  6. Required Surplus Finance Charge Collections$             0 $             0
  7. Aggregate Surplus Finance Charge Amount    $   174,568,556 $   174,568,556
     minus Required Surplus Finance Charge Amount

(1)  Values for Current Due Period on an Actual Basis reflect, in the case
     of a first due period close of a series, activity from the series cut-off
     or close dates until the first due period end, or, as in the case of
     Investor Monthly Interest and certain fees, until the first distribution
     date. Values for Current Due Period on a Standard Basis reflect activity
     for the entire current period, as if all series had already been
     outstanding prior to the first day of such period.

     All percents are based on actual cash revenue or expense for the period,
     converted to an annualized percent using daycounts appropriate for the
     item, either 30/360, actual/360, or actual/actual. Depending on the item,
     cash expenses may accrue from March 27, 1999 to April 27, 1999, 32 days, o-
     r April 6 , 1999 to May 5 , 1999, 30 days (standard basis).


                                       5
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1992-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1992-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1992-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$            0

  1b.  Class B Invested Amount         .......................$            0

  2a.  Class A Monthly Interest ..............................$            0

  2b.  Class B Monthly Interest ..............................$            0

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$            0

  4b.  Percent of Class B Invested Amount          ...........         0.00%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.



                                       6
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1994-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1994-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  940,000,000

  1b.  Class B Invested Amount         .......................$   60,000,000

  2a.  Class A Monthly Interest ..............................$    5,679,167

  2b.  Class B Monthly Interest ..............................$      375,000

  3a.  Balance in the Class A Interest Funding Account  ......$    5,679,167

  3b   Balance in the Class B Interest Funding Account  ......$      375,000

  4a.  Available Cash Collateral Amount  .....................$   70,000,000

  4b.  Percent of Class B Invested Amount          ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       7
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       8
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1994-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       9
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1994-4 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1994-4
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    5,156,250

  2b.  Class B Monthly Interest ..............................$      211,500

  3a.  Balance in the Class A Interest Funding Account  ......$   30,937,500

  3b   Balance in the Class B Interest Funding Account  ......$      211,500

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       10
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   30,937,500

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      211,500

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   30,937,500

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      211,500

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       11
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1994-4 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       12
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1995-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    4,296,875

  2b.  Class B Monthly Interest ..............................$      281,667

  3a.  Balance in the Class A Interest Funding Account  ......$   17,187,500

  3b   Balance in the Class B Interest Funding Account  ......$    1,126,667

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       13
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       14
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1995-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       15
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1995-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    4,088,542

  2b.  Class B Monthly Interest ..............................$      173,250

  3a.  Balance in the Class A Interest Funding Account  ......$   12,265,625

  3b   Balance in the Class B Interest Funding Account  ......$      173,250

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       16
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      173,250

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      173,250

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       17
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1995-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       18
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1995-9 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-9
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,729,167

  2b.  Class B Monthly Interest ..............................$      177,333

  3a.  Balance in the Class A Interest Funding Account  ......$    2,729,167

  3b   Balance in the Class B Interest Funding Account  ......$      177,333

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       19
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       20
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1995-9 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       21
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1996-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-1
   -----------------------------------

  1a.  Class A Accreted Invested Amount.......................$  899,508,007

  1b.  Class B Accreted Invested Amount.......................$   57,414,347

  2a.  Class A Monthly Accretion..............................$    4,340,643

  2b.  Class B Monthly Accretion..............................$      284,089

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$   66,985,228

  4b.  Percent of Class B Accreted Invested Amount ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       22
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       23
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1996-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       24
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1996-5 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-5
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,293,188

  2b.  Class B Monthly Interest ..............................$      281,480

  3a.  Balance in the Class A Interest Funding Account  ......$    8,586,375

  3b   Balance in the Class B Interest Funding Account  ......$      562,960

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       25
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       26
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1996-5 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       27
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1996-6 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  940,000,000

  1b.  Class B Invested Amount         .......................$   60,000,000

  2a.  Class A Monthly Interest ..............................$    5,071,927

  2b.  Class B Monthly Interest ..............................$      333,865

  3a.  Balance in the Class A Interest Funding Account  ......$   10,143,853

  3b   Balance in the Class B Interest Funding Account  ......$      667,730

  4a.  Available Cash Collateral Amount  .....................$   70,000,000

  4b.  Percent of Class B Invested Amount          ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       28
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       29
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1996-6 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 10, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       30
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,093,750

  2b.  Class B Monthly Interest ..............................$      268,000

  3a.  Balance in the Class A Interest Funding Account  ......$   12,281,250

  3b   Balance in the Class B Interest Funding Account  ......$      804,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       31
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       32
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       33
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  400,000,000

  1b.  Class B Invested Amount         .......................$   25,540,000

  2a.  Class A Monthly Interest ..............................$    2,279,667

  2b.  Class B Monthly Interest ..............................$      148,749

  3a.  Balance in the Class A Interest Funding Account  ......$    6,839,000

  3b   Balance in the Class B Interest Funding Account  ......$      446,248

  4a.  Available Cash Collateral Amount  .....................$   29,787,800

  4b.  Percent of Class B Invested Amount          ...........       116.63%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       34
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       35
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 10, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       36
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-4 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-4
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,254,000

  2b.  Class B Monthly Interest ..............................$      279,356

  3a.  Balance in the Class A Interest Funding Account  ......$    8,508,000

  3b   Balance in the Class B Interest Funding Account  ......$      558,712

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       37
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       38
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-4 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 10, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       39
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-6 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-6
   -----------------------------------

  1a.  Class A Accreted Invested Amount.......................$  714,249,660

  1b.  Class B Accreted Invested Amount.......................$   45,358,948

  2a.  Class A Monthly Accretion..............................$    3,763,570

  2b.  Class B Monthly Accretion..............................$      244,529

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$   53,317,648

  4b.  Percent of Class B Accreted Invested Amount ...........       117.55%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       40
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       41
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-6 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       42
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-7 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-7
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,307,292

  2b.  Class B Monthly Interest ..............................$      215,000

  3a.  Balance in the Class A Interest Funding Account  ......$    9,921,875

  3b   Balance in the Class B Interest Funding Account  ......$      645,000

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       43
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       44
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-7 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       45
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-8 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-8
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,353,333

  2b.  Class B Monthly Interest ..............................$      218,720

  3a.  Balance in the Class A Interest Funding Account  ......$    6,601,875

  3b   Balance in the Class B Interest Funding Account  ......$      218,720

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       46
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      218,720

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      218,720

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       47
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-8 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       48
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-10 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-10
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,189,444

  2b.  Class B Monthly Interest ..............................$      144,676

  3a.  Balance in the Class A Interest Funding Account  ......$    2,189,444

  3b   Balance in the Class B Interest Funding Account  ......$      144,676

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       49
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$    2,189,444

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      144,676

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$    2,189,444

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      144,676

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       50
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1997-10 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       51
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,593,750

  2b.  Class B Monthly Interest ..............................$      235,000

  3a.  Balance in the Class A Interest Funding Account  ......$   14,375,000

  3b   Balance in the Class B Interest Funding Account  ......$      940,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       52
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       53
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       54
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,520,833

  2b.  Class B Monthly Interest ..............................$      165,333

  3a.  Balance in the Class A Interest Funding Account  ......$   10,083,333

  3b   Balance in the Class B Interest Funding Account  ......$      661,333

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       55
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       56
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       57
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,020,833

  2b.  Class B Monthly Interest ..............................$      198,333

  3a.  Balance in the Class A Interest Funding Account  ......$    9,062,500

  3b   Balance in the Class B Interest Funding Account  ......$      595,000

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       58
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       59
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       60
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-6 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,656,250

  2b.  Class B Monthly Interest ..............................$      240,000

  3a.  Balance in the Class A Interest Funding Account  ......$    3,656,250

  3b   Balance in the Class B Interest Funding Account  ......$      240,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       61
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       62
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-6 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 10, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       63
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-7 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-7
   -----------------------------------

  1a.  Class A Invested Amount         .......................$1,250,000,000

  1b.  Class B Invested Amount         .......................$   80,000,000

  2a.  Class A Monthly Interest ..............................$    5,484,722

  2b.  Class B Monthly Interest ..............................$      359,200

  3a.  Balance in the Class A Interest Funding Account  ......$    5,484,722

  3b   Balance in the Class B Interest Funding Account  ......$      359,200

  4a.  Available Cash Collateral Amount  .....................$   93,100,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       64
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$    5,484,722

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      359,200

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$    5,484,722

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      359,200

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       65
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-7 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       66
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 CITIBANK CREDIT CARD MASTER TRUST I SERIES 1998-9
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-9 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-9
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,312,500

  2b.  Class B Monthly Interest ..............................$      222,000

  3a.  Balance in the Class A Interest Funding Account  ......$   15,789,583

  3b   Balance in the Class B Interest Funding Account  ......$    1,058,200

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       67
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 CITIBANK CREDIT CARD MASTER TRUST I SERIES 1998-9
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       68
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 CITIBANK CREDIT CARD MASTER TRUST I SERIES 1998-9
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1998-9 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 7 , 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       69
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1999-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1999-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1999-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,437,500

  2b.  Class B Monthly Interest ..............................$      230,000

  3a.  Balance in the Class A Interest Funding Account  ......$   10,083,333

  3b   Balance in the Class B Interest Funding Account  ......$      674,667

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       70
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1999-1
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       71
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1999-1
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1999-1 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       72
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Master Trust I, Series 1999-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1999-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1999-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,671,875

  2b.  Class B Monthly Interest ..............................$      246,000

  3a.  Balance in the Class A Interest Funding Account  ......$    9,424,479

  3b   Balance in the Class B Interest Funding Account  ......$      631,400

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       73
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Master Trust I, Series 1999-2
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       74
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Master Trust I, Series 1999-2
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1999-2 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 10, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer


                                       75
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card MasterTrust I Series 1999-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1999-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify the information set forth below. Capitalized
terms used in this Certificate have their respective meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1999-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$1,250,000,000

  1b.  Class B Invested Amount         .......................$   80,000,000

  2a.  Class A Monthly Interest ..............................$    5,619,656

  2b.  Class B Monthly Interest ..............................$      373,880

  3a.  Balance in the Class A Interest Funding Account  ......$    9,131,940

  3b   Balance in the Class B Interest Funding Account  ......$      607,555

  4a.  Available Cash Collateral Amount  .....................$   79,800,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       76
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card MasterTrust I Series 1999-3
                    For the Due Period Ending April 27, 1999

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       77
<PAGE>


                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card MasterTrust I Series 1999-3
                    For the Due Period Ending April 27, 1999

==============================================================================

    The undersigned, a duly authorized representative of Citibank (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"), pursuant to the Pooling
and Servicing Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"), as supplemented by the Series 1999-3 Supplement (as amended
and supplemented, the "Series Supplement"), among Citibank (South Dakota),
Seller and Servicer, Citibank (Nevada), National Association, Seller, and
Bankers Trust Company (as successor to Yasuda Bank and Trust Company (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on May 17, 1999

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 5th day of
                 May 1999


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Robert Wadalavage
                                        Name:    Robert Wadalavage
                                        Title:   Servicing Officer




                                       78
<PAGE>




                                    
                                   SIGNATURES

                 Pursuant to the requirements of the Securities  Exchange Act of
1934,  the  registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.


                                CITIBANK (SOUTH DAKOTA), N.A.,
                                as Servicer
                                Citibank Credit Card Master Trust I



                          By: /s/ Eugene D. Rowenhorst
                             ----------------------------------------------
                              Eugene D. Rowenhorst
                              Senior Vice President
 

Date: May 10, 1999



                                       79
<PAGE>
                                    






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