Payment system Failed to reverse money to Customer that the Manager insisted would reverse... leaving the customer to run around for his money that didn't belong to the store!

I have no account with the store. Did a purchase for a R299 jersy abd whilst doing the transaction on the POS device the PC for the tillpoint when off. No receipt had printed and the Store manager on duty insisted that the transaction didn't go through and would be reversed. I had then did another transaction and purchased the garment. The next day I checked my account to see if the transaction was reversed and it wasn't. So I went to the store to and notifies the manager and he had contacted his head office and they said this would take 48 hrs to reflect. I had also logged a query with them TRU-*** and now it's going close to a week with my money no reversed. I have called the manager at the store today and she wanted me to come to the store again to sort this out. I can't continuously spend money and waste time going to the store to get back what is mine. I wouldn't shop nor advise anyone to shop there as there is uncer*****ies of one buying anything using the POS systems at the store and the inconvenience of getting your money due to their bad management system when their payment systems fail. It is not the customers fault for the stores incompetence or system failures. And having the customers put to a run around for what is there's is not on! I know that this store has lost its trust as a good retail store and will continue to advise everyone about my current experience