New Renault Triber showing ENGINE FAULT

I bought a brand new Renault Triber in December 2021, in less than a week it started giving me problems and I was away in Bloemfontein. It started showing an engine light and wrote "check engine" then "engine fault".

I took it back and they checked it at CMH Renault in Midrand where I bought it. They called me to collect it, and a week later it did the very same thing. So this time we were furious and we told them, Renault CMH Midrand, that we want a new car, this was in January. They told us that we must email Renault SA. They checked and fixed the problem and it occurred again a week later. I am now without my car and have been driving theirs for 2 weeks now.

I demand that I get a new car as I have been patient for way too long.