SCHEDULE TO MONTHLY SERVICER'S CERTIFICATE MONTHLY PERIOD ENDING August 31, 2004 BANK OF AMERICA, NATIONAL ASSOCIATION (USA) BA MASTER CREDIT CARD TRUST SERIES 1999-C Class A - 055237AN1 Class B - 055237AP6 Secured Note Trust - 05526RAB0 and U06841AC0 1. The aggregate amount of the Investor Percentage of Collections of Principal Receivables $71,667,676.12 -------------- 2. The aggregate amount of the Investor Percentage of Collections of Finance Charge Receivables (excluding Interchange) $ 6,135,449.41 -------------- 3. The aggregate amount of the Investor Percentage of Interchange $ 1,183,991.00 -------------- 4. The aggregate amount of Servicer Interchange $ 520,833.33 -------------- 5. The aggregate amount of funds on deposit in Finance Charge Account allocable to the Series 1999-C Certificates $ 6,798,607.05 -------------- 6. The aggregate amount of funds on deposit in the Principal Account allocable to the Series 1999-C Certificates $71,667,676.12 -------------- 7. The aggregate amount of funds on deposit in the Principal Funding Account allocable to the Series 1999-C -Certificates $ 0.00 -------------- 8. The aggregate amount to be withdrawn from the Finance Charge Account pursuant to Section 4.11 and distributed to the Collateral Interest Holder in accordance with subsection 5.01 (c) $ 0.00 -------------- 9. The Collateral Interest on the Transfer Date of the current calendar month, after giving effect to the deposits and withdrawals specified above, is equal to $40,000,000.00 -------------- 10. The amount of Monthly Interest, Deficiency Amounts and Additional Interest payable to the (i) Class A Certificateholders $ 666,770.83 -------------- (ii) Class B Certificateholders $ 48,125.00 -------------- (iii) Collateral Interest Holder $ 87,666.67 -------------- 11. The amount of principal payable to the (i) Class A Certificateholders $ 0.00 -------------- (ii) Class B Certificateholders $ 0.00 -------------- (iii) Collateral Interest Holder $ 0.00 -------------- 12. The sum of all amounts payable to the (i) Class A Certificateholders $ 666,770.83 -------------- (ii) Class B Certificateholders $ 48,125.00 -------------- (iii) Collateral Interest Holder $ 87,666.67 -------------- 13. To the knowledge of the undersigned, no Series 1999-C Pay Out Event or Trust Pay Out Event has occurred except as described below: None IN WITNESS WHEREOF, the undersigned has duly executed and delivered this Certificate this 15th day of September, 2004. BANK OF AMERICA, NATIONAL ASSOCIATION (USA) TRANSFEROR AND SERVICER By: /s/ Brian P. Sterling ----------------------------- Name: Brian P. Sterling ----------------------------- Title: Vice President -------------------------