Gezina Master Cars Pretoria

I bought a car there last year by master cars Gezina and my dealer was Kelvin Mathikge. I bought a 2015 polo tsi and he never mentioned that the car was previuolsly in an accident, recently I had a problem with the radiator and because the car was still under warranty I took it to VW. The technician there then told me that they cannot replace it under warranty because it was previuolsly in an accident. I called Kelvin he gave me the run around and told me to speak to manager, eventually I did speak to the manager Russle and he was so rude and basically told me to **** off. Please save yourselves the headache and never purchase any car there because they are friendly when you come to buy the car. But when you want them to fix their mistakes they tell you to **** off!