Paying twice...and that's just ok??

I bought a few things at Checkers Hyper 14th Avenue today and paid by debit card (R233.96).<br> <br> As per the cashier the transaction was declined due to insufficient funds.<br> <br> Although my bank account showed that the amount was paid to Checkers, I had to pay again in cash.<br> <br> Capitec Bank in the centre gave me a statement to proof to Checkers that the money was deducted, but still I was not believed.<br> <br> As per Checkers manager, that they should receive a bank statement tomorrow and will confirm on their statement that the money was paid. In which case they will contact me and pay me my money back.<br> <br> I do not find it acceptable that I have to go out of my way (my time and my petrol) to go back to Checkers when it was their system that caused this situation.<br> <br> I get the impression that Checkers management are just not concerned with customer service.