Credit Cards funds not being reversed

Tuesday 15th Sept Shoe City Atterburry Value Mart. tried to pay for 2 pairs of shoes. first speedpoint machine had connection problems and declined my discovery credit card. was asked to try a second machine. the transaction took about 30 seconds to process and then declined. this happened twice. I received 2 sms's stating the transaction for R734.85 has gone off my credit card. the teller said it had declined. i was not given any shoes and was asured it would take up to 2 days for the funds to be revesed on my account. it has been 6 days now. i feel no ones really cares that i have around R1500 that is being held by Shoe City. i have called the call centre who put me onto the store and i have called the store who informed me it normally takes 2 days and i need to call the call centre. I finally got a little assistance and now need to email my query to [Email Removed] and then wait 3-5 days for a response. this is not acceptable!!! please assist i need the funds so i am able to continue living from daya to day. thank you