FRUSTRATED FNB CUSTOMER

This morning I reviewed my account to find that FNB has debited my cheque account with an amount I have already paid into my credit card. I called the call centre and spent 45 minutes on the phone being sent from pillar to post. I was requested to put in my pin which I did and it blocked my card because it claims it is the incorrect pin. What kind of service does FNB provide? I am supposed to be a Premier client and that means nothing. I am absolutely frustrated. I eventually spoke to the call centre Manger and he said that he needs to investigate and find out what's wrong. Bogani Masina called me back stating that should I reverse the debit order then it won't look good on my cheque account, it will be bad for my reputation as a FNB client. The debit order has not cleared after it has been debited on 26/02. Today is 28/02 and the debit order is still not cleared. This is extremely frustrating. I feel like closing my accounts with FNB.