EX-4.3 MBNA CREDIT CARD MASTER NOTE TRUST as Issuer and THE BANK OF NEW YORK as Indenture Trustee MBNASERIES INDENTURE SUPPLEMENT dated as of May 24, 2001 to INDENTURE dated as of May 24, 2001 EXHIBITS EXHIBIT A-1 [FORM OF] CLASS A NOTE EXHIBIT A-2...