CBA says it is working to reverse transactions as a ‘matter of urgency’ and any fees charged will be refunded

• Get our breaking news email, free app or daily news podcast

Commonwealth Bank customers have found their account balances lower than they should be after the bank charged some transactions twice, with some worrying they will not be able to make rent.

The duplicates involve transactions from recent days and have resulted in some people having their bank accounts overdrawn.

Sign up for a weekly email featuring our best reads