Exhibit 99.33 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-C KEY PERFORMANCE FACTORS August 31, 1998 Expected B Maturity 6/16/2003 Blended Coupon 5.7806% Excess Protection Level 3 Month Average 4.74% August, 1998 6.39% July, 1998 3.09% June, 1998 N/A Cash Yield19.08% Investor Charge Offs 5.09% Base Rate 7.60% Over 35 Day Delinquency 5.00% Seller's Interest11.64% Total Payment Rate14.21% Total Principal Balance$37,775,682,964.86 Investor Participation Amount$750,000,000.00 Seller Participation Amount$4,395,888,446.37