Unhappy and exploited customer from Westvaal and Renault service

This company is a **** company. Their services is so poor that they are exploiting me. I bought a Renault Clio at Westvaal Rusternburg in March. 3 weeks later the car broke down and I was told I was to blame when I traded them a Toyota that I drove for 4 years and replaced nothing on it. Fine, I paid R15000 for that replacement(Which took a month) then 14 hours later I got stuck with the same car that was licking green water with smoke everywhere. The car was then taken back to Renault for 2 weeks then I got it back. It's been little over 3 months that I have been driving the car and it's faulty again. And who is to blame?? My "driving style" which criteria is used to determine someone's driving style while you busy milking money on a *** car that is supposed to be 6 months old???? And now no one wants to take responsibility and I have to pay another R15000 within a period of 3 months. I am fed up with Westvaal and Renault. Can someone please advice.