Dishonest and unhelpful cargo motors Klerksdorp

I bought a second hand a class vehicle with no accidents and when selling I enquired about other dealers picking up 2 accidents prior to me buying. They said their stock was low so they bought out vehicles from we buy cars and they did not disclose the accidents to them. How is my problem ? They will only give me a better price if I buy something from them....this is truely a big dissapointment how am I suppose to trust them if they sell damaged vehicles and put the blame on others and not just accept responsibility for my loss now I have to take the loss when selling a vehicle....if I didn't care about the future value I would have bought a car from another dealer but got **** to