EDGARS ACTIVE repay back my money

On the 05th April Friday last week I went to Edgars Active in Boulders Midrand to settle my Edgars account and close it. I told the cashier there, that I want to settle my account and the money is in my Both my FNB and Capitec account, meaning the first payment of R3100 I will swipe using my FNB account and the balance of R1550 I will use my Capitec account. He agreed and went ahead with the transaction. The R3100 from FNB went through and while making the last payment of R1550 from my Capitec account their machine went out of services. He tried waiting for the machine to respond for an hour but it never did. So He told me that they will have to void the whole transaction and that the R3100 that was subtracted from my FNB account will be reversed in no time. I asked for their Manager Clifford who also assured me that the money will be in my account less that 24hrs. I left and there was no reversal of the R3100 to my account. Went back on Monday 8th April and they said the manager was off that day. I insisted that I speak to him and they called him. He said He will find out from finance. On the 10th they asked for my FNB statement and said their finance department resquest for it because they need proof. I sent it and no money was reversed. Today the 13th I was called by Edgars Collection department telling me that am behind with my payments. I told them the full story and they said they will get back to me but they never did. Can Edgars please give me back my money so that I can pay their account and close it in peace! They are so unprofessional and their POS machines are old and needs to be replaced. It's been a whole week and they have failed to resolve this matter with me.