After sale nightmare

The worst thing you could do is to buy a vehicle from Mit Mak Motors, firstly they sell used cars with alot of problems which you may not know untill you purchase it, i'm struggling to get my vehicle fixed which has alot of problems, the person who sold me the vehicle which is Chris now tells me he resigned he's no longer working for Mit Mak motors, i tried to get hold of the workshop i get no response. I'm stuck with a s**** car that i've only driven 3000km