MBNA signaled a no go on Spanish bank, Santander Central Hispano's bid to buy back Abbey National's credit card operation sold to the U.S. company four years ago (see ASR 01/09/06). Banco Santander is considering expanding Abbey's business by severing its ties with MBNA and repurchasing Abbey's portfolio. According to market reports, MBNA has issued credit cards with the Abbey logo to 1.27million U.K. customers.