Unauthorised online purchase

On Saturday 07/12 R1199 was deducted from my account via online purchase. I called Capitec client care and I was told that the money will be reversed and back in my account within 7 working days. On the 18th the money was still not reversed and I called them again and the lady said they are busy investigating the matter and they will call me back within 14 working days. I want my money back Capitec I did not authorise any teansaction and I need you to reverse my money asap, you promised 7 working days now you are saying 14 working days, no I want it now.