Royal Bank of Scotland issued a further apology as it said it had resolved a glitch which delayed around 600,000 payments for customers.
The taxpayer-backed bank said it was “extremely sorry” for the problem which affected all four of its banking brands - NatWest, RBS, Ulster Bank and private bank Coutts.
“We can confirm that the issues customers were experiencing in relation to delayed credits and debits have now been resolved and accounts have been updated,” said a spokesman.
“We are extremely sorry for the inconvenience and distress that this has caused our customers.
“If any customers are still experiencing issues please contact our call centres or come into a branch where are our staff are ready to help.
“We will continue our work to make sure that no customer will be left out of pocket as a result of this issue.”
The bank faced a barrage of customer complaints after it admitted earlier in the week that delayed banking payments may not show up in accounts until the weekend.
The issue also affected some Bacs payments, such as tax credits and disability living allowances.