Exhibit 99.12 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-C KEY PERFORMANCE FACTORS November 30, 1999 Expected B Maturity 4/16/01 Blended Coupon 5.5790% Excess Protection Level 3 Month Average 5.95% November, 1999 5.86% October, 1999 6.16% September, 1999 5.84% Cash Yield 18.33% Investor Charge Offs 4.89% Base Rate 7.58% Over 30 Day Delinquency 5.02% Seller's Interest 8.52% Total Payment Rate 14.09% Total Principal Balance $48,461,894,441.68 Investor Participation Amount $500,000,000.00 Seller Participation Amount $4,130,074,923.19