Faulty car - No feedback on complaint

I have sent a complaint to Imperial Select on their website about a car I bought. The breaks of the car is giving problems and they just don't care if it puts my life in danger. First Clive didn't come back to me and now Johan van Zyl who took over doesn't give feedback. Always talking to people (whoever they may be) about the problem but never come back to us with a solution to fix the problem. Even phoning Renette Crock at the complaint centre did not help. She was suppose to find out from Johan what the status is on the complaint but no feedback as yet. Am I wasting my time to get any service from this company ?? What happened to the TCF policy ? Doesn't it apply to your company ??