Exhibit 99.12 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-H KEY PERFORMANCE FACTORS MARCH, 2001 Expected B Maturity 09/17/01 Blended Coupon 5.5149% Excess Protection Level 3 Month Average 7.30% March, 2001 8.00% February, 2001 7.69% January, 2001 6.21% Cash Yield 20.69% Investor Charge Offs 4.83% Base Rate 7.85% Over 30 Day Delinquency 4.90% Seller's Interest 7.37% Total Payment Rate 14.60% Total Principal Balance $ 56,622,749,044.91 Investor Participation Amount $ 1,200,000,000.00 Seller Participation Amount $ 4,172,058,483.42