!!!!Don't want to close my account!!!!

I asked for my Standard Bank Account to be closed as I moved to a new bank. I received a call from my Prestige Banker and she said that I should pay in an x amount so that the account can be closed. I in turn did so within a hour and the money also showed in the account immediately. I saw after some days that there are debit orders going off the account, there were not sufficient funds in the account for the debit orders to be successful as I only paid in the amount required. I did contact my prestige banker again, did not get quick response. After that I observed the account and a few debit orders still went off, obviously guys which I switched and did not stop the debit order. The amount gathered up to almost R1000.00, my prestige banker eventually contacted me and said that I should pay in another x amount for the account to be closed. I then told her that I will not pay anymore as this is not my mistake. She then escalated the matter to her Superior but haven't heard from them yet. I want the account closed asap and I will not pay a cent more. My Prestige Banker is Elmarie Kock from the Sasolburg Branch.