Bad experience and refund policy takes ages

I went to Silver Lake branch to view a vechile on auction. First the vechile was not at their premises while on auction it was at Dekra in Silverton. Sales person JC Jansen took us to Dekra in Silverton to find the vechile not there. Back to Webuycars Silver lake with 5min to spare. The sales manager told us to place a bid to secure the vehicle and if not happy the will cancel the bid. Gold label sticker class A vechile (clean report). We purchased the vechile with a cash transfer. On arrival in my home town approximately 300km away we booked the vechile in at our trusted mechanic, they found • oil leaks • aircon pump on its way out • noisy pulleys • broken gaskets. The repair costs for this at R 24 900 (problems that was not stated on the dekra report). We phoned in regarding the faults on the vechile, with a respond that they won't cover the costs for the repairs the said they will cancel the purchase of the vechile, we must bring in the vechile. Back to Silver Lake branch(again 300km( to hand in the vechile) Sales person (JC Jansen) not very helpful regarding the matter(arrogant). Vincent(Manager) Helped us to book in the vechile and get the process started. With instructions from Glen Andre. No credit note or evidence the we returned the vechile they assured us that our purchased amount will be refunded. Back to our home town.... 20 x phone calls, several emails later 1200km with the current fuel price travelingwith 2x vehiclesback and forth, no refund yet 4 days later. When they want money they expect they money there and then, but on refunding it is a hazel. No credit note was received and they have all the required documentation to process the refund. Still awaiting and still phoning to try and sort out the matter.