Ulster Bank has apologised unreservedly for its current technical problems which have stopped customers accessing their funds.
The company says a software glitch meant automatic salary and social welfare payments were not processed - and it's now working to clear the backlog.
It's estimated that at least 100-thousand customers have been affected.
Social Protection Minister Joan Burton has hit out at the bank - calling on them to open over the weekend if it is not fixed before then.
Elvena Graham is Chief Operating Officer of the Ulster Bank Group.
She says some branches will open tomorrow, and on Sunday - if necessary: