Faulty car

I have a financed vehicle with Absa bank. Got the car on the 14th of January 2021 a week after I started having issue with the car and took it back to the dealer they fixed the tier and told me they will make booking for the aircon to be fixed , since then I started having so many other problems with car.On the 4th of March 2021 I took the car back to the dealer and logged a complaint with Absa to cancel the dealer because the car has been giving me problems and there is no one to complaint to at Auto unique wonderboom.Since the 4th the car has been with them and today they come back and say the dealership doesn’t want to cancel.I am so stressed because they gave me a car that was involved in an accident and didn’t disclose. I don’t feel safe driving that car and want the deal cancelled.Absa is telling me they can’t cancel the deal but how must I pay for the car is not with me. Absa complaint reference is C-**********5