Unsatisfactory repairs and bad treatment

Hi

I hereby have a problem with the garage "Carmer Motors" in Standerton, took my car there for repairs after the cam-belt broke (VW Polo 1.9TDI), since the car was reported back me as repairs being done and completed it never driven even a 1000km. There problems with starting, oil leaks, lack of power, extreme exhaust fumes, and now not starting at all. Notified the garage and they have said it's not their problem, I've got the car stuck in Middelburg . Then again couple of times the employee mechanic who was actually doing the repairs, the employee is very rude especially against black clients. Had issues a couple of times with him and now on the last repair, which got the car stuck permanently.

Please I ask for your help to resolve this issue

Regards