i need assistance with closing my cheque account

Hi I went to FNB Grassy Park on the 7th June to close my cheque account, as I am now under debt review and no longer make use of the account. the lady at the bank i spoke to said i needed to wait 14 working days before the account can be closed as she can see it is under debt review and someone will contact me back. My cheque account has not been included in the debt review, I advised the debt counsellor not to include it because the amount was small it was just over R350. I checked my account yesterday and my account is now in a minus R655 because of charges and since the 7th June when i asked for my account to be closed nobody has called me. I need this account closed please before i continue incurring more charges for an account i am no longer using. Im not sure why i had to wait 14 working days when this account was never included in the debt review. can someone kindly call me to assist me.