Selling of mechanically unfit and defective vehicles to customers.

In less than two weeks after purchasing a second hand Audi from Autohaus Centurion on my way from Kathu to Postmasburg I got stranded by the vehicle alongside the road with mechanical problems and had to call a local mechanic to come and assist me just to get my the vehicle mobile and off the side of the street. I am living in the Northern Cape and purchased the vehicle from Autohaus Centurion in Gauteng under the false perception that such an dealership will only sell reliable cars which have been inspected by Audi certified mechanics and that the vehicle will provide good service. I contacted the salesperson from Autohaus Centurion and informed him of the event I had on that day as well as other defects I found on the recently purchased vehicle and he suggested that I should bring the car to the Centurion dealership instead of the nearest Audi dealership which is situated in Kimberley for checks, claiming that the dealership in Kimberley is going to charge them too much money. I agreed to take the vehicle to Centurion ASAP, and cannot do so immediately because Centurion is 600 kilometers away from me, I had to arrange for leave from work and for accommodation in Centurion for that time being. On the 21st of April with the vehicle's first long drive om my way to Rustenburg I got stranded again in a totally unfimilair town and had to wait for two hours at a garage because of the car losing water. On the 22nd of April, the next day I contacted Autohaus to request to return the vehicle for a refund because I got stranded three times at that time, it was sold to me with many defects and proved unreliable but they refused to refund me. Causing much inconvenience and having to change my whole plans for the weekend I took the vehicle to the dealership in Centurion from which I purchased it. When I got their and made them aware of all the problemd I had hey still refused a refund and suggested to repair it and give it back to me. Considering the price of the vehicle, the fact that it has let me down three times alongside the road in less than two months and the fact that I purchased the vehicle from an Audi dealership one would expect the vehicle to be mechanically in a good condition. Unlike I were told, the vehicle was in a bad and unfit mechanical condition before I bought it.