Poor service regarding a refund

I, Johan Vermeulen went to the store at Newmarket Mall in Alberton on 21 November 2019 and purchased a lounge suite. I laid down a deposit of R4000.00 and then waited for approval of my 12 months account. On request I had to produce a employment contract which still showed a probation period for 3 months which would have ended on 30 November 2019, but my application was declined. Subsequently my wife went to open an account on 26 November 2019 which was approved, but the Sales person informed my wife that the deposit could not be transferred and it will be refunded to myself. After numerous visits to the store and calls to the call centre this money has still not been refunded to me. Yesterday I had to produce proof of payment - surely this should show on their computer records?? I cannot understand that a matter like this should take so long.