appalling service

I went in to purchase with items and got to the teller and their EFT system went offline. they had processed the transaction and debited me but I could not take my items as they claimed that the money was not received by them, they even called the bank for confirmation and the bank told them that payment had been processed from my account. I was then told to wait 7 days for my money to be refunded. I escalated the query after 4 days and today is day 7, still no feedback or my money. Edgars will have to according to TCF refund me immediately for the purchase as well as interest lost during this time, I don't care even if it is R2 in interest its the principle that applies disgusting service from the team I'm=n Bedford centre as well, no interest in assisting rather stand around on cellphones and chatting to each other while clients are waiting