Lack of business ethics and arrogant

I bought a car 27 July 2020. Couldn't register vehicle due to covid. Shocks and CV had to be fixed. At present they don't want to fix the ball joint and heater radiator. The rear door doesn't want to close, the rear right door the paint is cracking. I opened a case with MIOSA at present the case is with National consumer commission. I can't take the car to roadworthy test due to this repairs. Never in your sober mind try to buy cars with them. Lack of business ethics. Ignore positive comments as they are ****