RBS said today that whilst the "vast majority" of NatWest and RBS accounts have been updated and are back to normal, a small number of transactions remain unprocessed and Ulster Bank customers may face delays for the rest of the week.
Some of those Ulster customers have taken to Twitter to express their disappointment:
So, RBS left Ulster Bank to the end to fix..pfft
Still nothing. Seriously Ulster Bank?
The bank said "We appreciate the patience that has been displayed".... let me inform them, that patience has run out.
The chief executive of NatWest's owner RBS, has said that "a corner has been turned" as it deals with the fallout of an IT meltdown.
NatWest customers faced further chaos today almost a week after the bank's computer glitch. But what should you do if you're affected?