RBS has said 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. Ulster Bank customers may face delays for the rest of the week, however.
A statement from the company reads:
Progress towards a completely normal service is likely to be affected by the significant stress on the system over recent days. The Group has already announced that the significant problems facing Ulster Bank are likely to continue for the remainder of this week, however the solution applied in NatWest and RBS has been successfully applied to Ulster Bank overnight, increasing our confidence that we will restore a full service by Monday.
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?