Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS JULY, 1999 Expected B Maturity 12/15/06 Blended Coupon 5.2055% Excess Protection Level 3 Month Average 6.33% July, 1999 6.25% June, 1999 5.20% May, 1999 7.53% Cash Yield 18.74% Investor Charge Offs 4.97% Base Rate 7.52% Over 30 Day Delinquency 4.84% Seller's Interest 9.75% Total Payment Rate 14.54% Total Principal Balance $ 45,698,903,036.29 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 4,456,383,517.80