Useless and Shady Dealership

This is re: NTT Isuzu Tzaneen. They sold us a faulty car 5 months ago, we never took occupation of the car as it was faulty. This was never disclosed when we bought the car, even when asked. We continued with the monthly installments, they now have the assessment of the car but not giving us any feedback. It's been promise after promise. Johan and Marco Lottering (Dealer Principal), have been useless and shady. Disappointing service!