AIB customers are hit again after its IT systems crash
AIB has promised no customers will be left out of pocket after it latest IT crash.
The bank said all its services were back up yesterday evening after a major technical issue frustrated customers trying to carry out transactions.
The technical issue meant online banking was affected, and customers were unable to withdraw money in branches.
Mobile banking had also been affected.
But the bank insisted its ATMs were not affected by the breakdown.
In a statement yesterday evening, the bank said: "All services are now operating as normal. We apologise for the inconvenience caused to customers today while we experienced some technical issues. We want to assure customers that they will not be out of pocket as a result of this."
Earlier in the day, the bank experienced technical issues which hit its branch and telephone banking services.
But it insisted that ATMs were working.
Hundreds of customers had been reporting problems accessing the AIB website. Customers expressed annoyance on social media that the bank's systems were not working properly.
Both Bank of Ireland and AIB have been hit by repeated IT crashes, despite both banks insisting that they have spent millions of euro updating their electronic systems.
The latest IT problem at AIB comes less than a month since the bank's internet and tablet banking broke down.
At the start of July AIB admitted that some of its business users were not able to access its online systems for more than 24 hours.
Deputy chairman of the Consumers' Association Michael Kilcoyne called on retail banks to invest more in their IT systems.
"Investment in IT systems seems to be a long way down the list of priorities at the banks that we rescued," Mr Kilcoyne said. He said customers expected better service. "It is quite simply not good enough that we have so many systems failures when banks are charging so much," he added.