Buying a car at autopedigree is just a waste!!

It hasnt been even a year with my car but I already have to pay R12 000 for mechanical repairs.Spoke to the branch manager and he said he cant be of assistance as he wasnt there at the time of purchase and the sales person was dismissed.Spoke to the regional manager and he was rather rude said it's not their business as I'm the one that drives the car.If all checks are done proper why would I experience such a problem at such a short period of time???I'd understand if I burnt it but nah.