Autoworld Voortrekker

Bought a car here about 4 months ago, had to fill the oil twice, asked them what's wrong, they took the car back "trying to fix it" Now I'm without a car and they can't solve the problem, I'm paying a car I don't have. They use it on weekends probably for personal use, they can't even give a curtesy car. When I call them, they promise that I will get the car back "this day" then when I phone a day after they end the call while I am still talking. I go there and they hide behind the desk. Horrible service.