3 Weeks after complaint and no resoltuion

I lodged a complaint telephonically approximately 3 weeks ago. I settled my RCP, by paying the balance indicated on the statement. What happened was that an amount of R1500.00 was deducted from my account even after a R0.00 balance was indicated. I called the Call Centre immediately and they stated that I should go into the bank to arrange for the account to be closed? <br> <br> After the complaint, Busisiwe contacted me and provided the same feedback and confirmed that the amount deducted will be refunded but to date nothing has happened. It is now 9 working days later, after my initial complaint, and the amount as promised has not yet been returned to my account? <br> <br> I expect a swift resolution to this, failing to do so I will be left with no other option but to approach the Banking Ombudsman.