Exhibit 99.18 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-H KEY PERFORMANCE FACTORS JULY, 1998 Expected B Maturity 09/17/01 Blended Coupon 5.8315% Excess Protection Level 3 Month Average 4.98% July, 1998 5.29% June, 1998 4.73% May, 1998 4.94% Cash Yield 18.81% Investor Charge Offs 5.14% Base Rate 8.38% Over 35 Day Delinquency 4.90% Seller's Interest 15.22% Total Payment Rate 14.52% Total Principal Balance $ 37,740,921,726.81 Investor Participation Amount $ 1,200,000,000.00 Seller Participation Amount $ 5,743,527,208.32