Bad service

I called the call-centre and request what is required for me to close and cancel my account i was told I must go to the branch and they will assist, I then went to greenstone branch on the 25th June and paid off my bond and the lady told me I must call the call centre and they will advise on the the next step , I then called the call centre and they told me to fax the letter of cancellation , I did that , I then called to confirm and I was told that they did not received I resend it again and then month end my account was debited I called the call centre again and I was told to send the letter for refund, this is really frustrating , I called the call centre yesterday to confirm if all is in order the guy told me he will confirm with his supervisor if they did received the information I was on hold for 15min and no help. This is pathetic seriously.