Danske Bank has moved to clarify the situation for customers whose accounts are to be closed.
The bank says 8,000 current accounts will close this weekend, 6,000 of which have not had any transactions in the past month.
ATM cards can be used this weekend to withdraw funds, but as of Monday those accounts will not be accessible unless customers contact the bank.
For customers that have current and savings accounts, they will be able to access their funds until February 21.
Customers with accounts including mortgages or custody accounts have not yet been written to and do not need to take any action until they receive a letter from Danske Bank.
The bank said it is dealing with a high volume of queries at present, but that phone lines will be open until 8pm tonight and 9am to 4.30pm tomorrow and Sunday.