Very disappointed customer

I am very disappointed by the kind of service i received yesterday at Decathlon Roodepoort. Me and my partner went to purchase a few items at the said store, when we got to the till to pay my partner was charged twice. The first amount which was R3.868.00 and the lady at the till said the transaction didnt go through (of which it was only her speed point which didnt print out the slip). The lady said we must try again to swipe we did and the machine error message was "you have exceeded your daily limit. Then we swipped again this time the amount of R2.868.00. My partner got 2 incontact messages to show that both transactions went through.

Now the manager came and he advised the money will be transferred back into our account within 72 hours. I feel its not our problem that their speed point didnt work properly. I am highly disappointed. can we please be reimbursed us our money. we will go buy at Decathlon Alberton.