Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS MAY, 1998 Expected B Maturity 12/15/06 Blended Coupon 5.8795% Excess Protection Level 3 Month Average 5.56% May, 1998 4.89% April, 1998 5.92% March, 1998 5.86% Cash Yield 17.95% Investor Charge Offs 5.01% Base Rate 8.04% Over 35 Day Delinquency 5.17% Seller's Interest 13.80% Total Payment Rate 13.68% Total Principal Balance $ 35,599,996,121.04 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 4,911,601,602.55