Autohaus Scheckter compain

I bought a Nissan Navara from Autohaus Scheckter. On delivery I was promised petrol money, I am in Klerksdorp and had to drive from 183km, I did not get. The airbag light kept flikkering. they got it fixed after alot of driving from one place to te other.Now I am stuggeling to get my warranty inrformation from them. so every thing you want from them is a big problem for them. it seems that if they sold you the car it becomes your problem. So I dont feel like BOTHERING them about any problems about the car