Worst bank

Hi , I would like to express my dissatisfaction with capitec bank, this now stems from an incident I had where capitec did a double payment on one of my regular payments. I immediately called the bank seconds later to cancel the transaction however i was told that it would need to take 7-14 working days In order to get reversed and I was given an excuse incident number. 3 days later I called the bank .. no progress was made. 7 days later my 160 Rand reversal fee was debited, yet to this day I have not received my money back and I have not even had a call from the bank with feedback. This to me is the worst service ever experienced and I would like to immediately close my account!