missing money staff ignoring problem

Please could someone assist me? I don't know what to do with regards to the sandton forever 21 store. The shop assistant thought my first swipe of my atm card did not go through and swiped a 2nd time, so 2 payments went off. I called the shop to find out about this and was told that the money would get back into my account in 72 hours, this didn't happen. I call again then I am told it takes 7 working days. At this point it's been over 7 working days and when I call and try to get assistance I keep getting given wrong information. I am more than happy to send through the receipt but I don't think it's right for a customer to do this much chasing for her own money. I also am not close to the shop and I am not comfortable faxing or emailing my private bank statement through either.Anyways, at the end of the day the error lies with the shop, but all that's happening is I am getting passed around and given the wrong details, and being asked to inconvenience myself for something that isn't my fault<br>