RBS completes 600,000 delayed payments three days after they were due

A delay to 600,000 payments was reportedly caused by a systems failure

RBS alerted customers on Wednesday that up to 600,000 overnight payments may be 'missing' from bank accounts at NatWest, Coutts and Ulster Bank (AFP/Getty)

Customers of the Royal Bank of Scotland whose payments went missing overnight on Tuesday have now received their money, according to RBS.

RBS alerted customers on Wednesday that up to 600,000 overnight payments may be 'missing' from bank accounts at NatWest, Coutts and Ulster Bank due to a technical glitch, sparking a string of complaints over "yet another Natwest blunder".

The last time such a major delay happened, after an IT glitch in June 2012, UK regulators hit the bank with a fine of £56 million.

The Prudential Regulation Authority has said it is in touch with RBS following the latest hitch, the FT reported. It was one of two regulators to impose the fine in 2012.

A spokesman for RBS said that all the accounts affected had been updated.

"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," the spokesman said.

"We are extremely sorry for the inconvenience and distress that this has caused our customers."

RBS asked any customers still experiencing issues to contact its call centres or come into a branch "We will continue our work to make sure that no customer will be left out of pocket as a result of this issue," the spokesman added.