Allied Irish Bank (AIB) said all debit cards are working again after some customers had problems over the weekend.
“We can confirm that AIB debit cards are now operating normally at ATM machines, including non-AIB ATMs. AIB is continuing to monitor the situation very closely,” the bank said in a statement on Sunday afternoon.
Earlier, the bank apologised after some customers who are unable to withdraw money from ATMs.
Customers had problems at the bank's cash machines because they were mistakenly registered as being over their daily limit.
The bank's customers using AIB ATMs were affected if they have previously attempted to withdraw funds at a non-AIB ATM earlier in the day, where the total value of their attempts was greater than the daily €600 limit.
Some AIB customers using AIB ATMs also had problems if they had previously attempted to withdraw funds at a non-AIB ATM where the total value of their attempts was greater than the daily €600 withdrawal limit. AIB credit cards were working as normal.
Furious customers took to social media yesterday to voice their frustration at the glitch which struck just days before Christmas.
Bank of Ireland customers also had problems on Friday.
The bank confirmed that an incoming payment file was delayed overnight but said yesterday morning that the issue had been resolved.
It is not known how many customers were affected by the delay to the payment file.
Tom Molloy, Group Business Editor