NatWest Visa debit card holders have been unable to make payments to Egg credit cards via the latter's Web site for over two months because of a database glitch.
Egg's Web site has not been identifying NatWest Visa debit cards as legitimate because it does not recognise their Bank Identification Numbers (BINs).
The Citi-owned firm uses Experian Payments' bank data validation system, Bank Wizard, to receive BIN updates as cards are introduced and old ones become obsolete.
Experian has told the BBC that card issuers are responsible for keeping it up to date and that it has now been in contact with NatWest. Consequently, Egg says the glitch should be fixed in the next few days.
Database glitches affect payments to Egg - BBC
NatWest owner RBS has issued the following statement: "In line with Scheme rules, we provided all the necessary information to Visa to enable them to communicate changes to bank identification number (BIN) ranges for our new Visa Debit cards. Visa communicated these changes to acquirers in good time. It is the responsibility of the acquirer to inform their merchants of these changes, however, we are keen to resolve this problem for our customers as soon as possible, and we are working closely with Egg and all other parties to do so. This is an isolated issue, and our customers can pay their Egg credit card bill through our online or telephone banking service or through their local branch."