FNB past pathetic

I went to close my credit card at the branch on 10 October 2019, they said it will take 48 hours to conclude, and they need my bankstatement of my new bank account so that they can debit any outstanding amount, 6 days later I get an email that say my account can't be closed as there is an amout outstanding and that I need to make a deposit.

This is not what was told to me and the consultant at the branch said I can't pay the Credit card at the branch. I want my account closed, the way they said it would, so debit my bank account, you have the information, and close my credit card.

This is the worst service EVER!!!!!