Standard bank service

I have a debit that is not supposed to go off anymore, these people started debiting me so much month end that i stopped using my standard bank account resulting my account to go into a hefty minus (R2100). I called Standard bank and I was informed that they can try to stop the debit order (not really offering to go through with this option) but if the reference or date or any details cheanged on the debit order it would just continue to go off(so basically they can't help me), I was rather advised to close the account or whatever. I don't have issues with Standard bank. I would like to keep my Cheque account with them, but how can this be sorted out? Or is the only solution to close the account and move to another bank???