Auto Pedigree Brits

I bought a car from Auto Pedigree in Brits, North West and I was assisted by David, forgot his surname. I bought a 2016 Renault Sandero Stepway with a mileage of > 55000 km. I bought the car in December 2019. I took the car to Renault in Brits and I was told that it has a messep up turbo and that the car was in an accident before, I was not informed about all this. I feel that I was cheated by not being given the correct information. Now I'm told that a new turbo will set me back R40000 and if I don't sort it out, the engine will go bust, so I'm literally paying for a car that I know will give up on me soon.