ANZ is aiming to refund victims of the ATM scam within 24 hours - but some customers are frustrated they are losing money days after the fraud became known.
The bank and police are continuing to investigate the scam - which widened to include a fifth machine in Orewa - with up to 500 card holders affected.
International fraudsters have placed a device over the slot where a card is inserted that collects information, while a small camera positioned above the keypad captures the PIN number being entered.
Thousands of dollars have been taken with the cash withdrawn in Milan, Bangkok and in Hong Kong, among other cities.
Yesterday, a spokesman for ANZ National said they were still assessing the number of cards that had been used during the days the scammers are thought to have struck.