Bank Fees Charged when closing Account

I wanted to close my FNB Business account at the end of July before the montly fees went off again in the new month. I phoned the call centre and mailed the customer care email address to request this. The both responded saying that I need to go into the branch with ID and a R0 balance in the account. I could not get to the branch before month end and the R235 account Fees went off and put the account into arrears. I then settled the arrears and went into the Walmer Park Barach to close the account as instructed by FNB. After waiting 30 minutes at the branch to be served the teller informs me that they now cannot close the account as I have to pay an additional R235 for this month which has not reflected in the account. So - the account had a null R0 balance and I then would have to pay R235 which was not shown on the account for the next months fees??? Why is every FNB employee on a different page with different instructions and methods?? Why should I have to pay additional bank fees for an account which I have not used for fees which are not reflecting?? I walked out and did not pay the Fees - my account is still open. I want the account closed as asked with the R0 Null balance as instructed by the FNB call centre / email replies.

Please advise.