Bank feed - duplication of account

The bank feed function stopped working with one particular bank account. When I went to reconnect the bank feed via the link in myob, this original account was duplicated with an account that was given a number that was in a totally different area within assets. I tried to delete this duplicated account but an error message displays 'this account is used in a bank feed and can't be deleted' even though I cancelled the bank feed application for it. When I push the bank feed neither this duplicated account nor the original account show they are connected to the bank as there are no transaction displayed. Any suggestions please on what is happening and how to fix it. Thanks.