non reversal of debit card payment

The cashier swiped my card twice last Thursday. She said I must come back in 48 hrs if it doesn't reverse. I went back yesterday and was then told I must come with a bank statement. I showed them my online banking account. This wasn't enough so Mr Chauke took my card details and said he would email head office first thing in the morning to do the reversal and copy me.No surprise I'm still waiting and Im really frustrated that this is becoming a real inconvenience and no one is sorting it out or coming back to me.