Travelstart refuses to refund money paid to First Car Rental

Booked a rental car through Travelstart on 26 June 2019. Service provider was First Car Rental in Stellenbosch (also useless) When my wife went to pick up the car it was not ready. Money already paid by credit card although car was not delivered. Its two months later and they keep on passing the buck. Travelstart says I must contact Cartrawler and they in turn refer you to a website and then it takes ages to log all sorts of info, until you get stuck at a point. Everything if fruitless. Endless phone calls and time wasted. Travelstart and First Car rental still sitting with my money which is plain dishonesty. Do not use any one of them. Bad customer service unhelpful total lack of integrity.