Unauthorised debits when the account is closed.

Eventually received the Natis forms from Wesbank and all they said after all the inconvenience was sorry. We see you received the Natis forms. After another long frustrating battle with Wesbank, the account is still not closed. We received a form with the Natis forms as well as from Charlene Glass, which stated that the account is closed. WESBANK TOOK ANOTHER DEBIT ORDER TODAY! Can someone just please advise why the account is not closed? Why it reflects in minus R21 000? Still waiting on Florence Mogale who has said she is looking into this a month ago. When an account reflects in minus, you are to pay that money to the customer. This is the worst customer service I have ever experienced!