Very bad Service and undermining Clients

We took my 2006 Mercedes-Benz A180 (Black)t o P and H Merc Specialist on 16 August 2025 for repairs. The car was leaking oil and the V-Belt was loose and needed to be replaced. It took 2 weeks for the repairs to be done and when I collected, I realised shortly after leaving the workshop that the car was losing power. I kept driving home thinking it would get better as I kept going but it didn’t. I called the workshop to notify them then returned the car for them to check and correct whatever fault was there. I later found that they returned the car back to me without even test driving it hence they missed this issue. They diagnosed the car and the printout showed that the fault was wiring and they claimed it was not their fault. I returned home with no resolution. I went back to then again and again, only on the third return they (08/10/2025) booked the car in to fix it. This spanned over a period of 2 months. My car is with them now and has since incurred more issues which were never there. Currently there a steering rack issue, the fan is very loud when the car is running, the losing power issue is still not fixed. Instead of fixing what they broke they sent me quote for R16 800 for parts that they broke. My car has been with them for 3 weeks now and they are not giving me straight answers. As far as I know the car is still not fixed and I do not know what is the way forward. I call them every day, speaking multiple people including their Director Prenkey Masilela ***) and they all give me the runaround. I managed to speak to the Director Prenkey Masilela concerning the parts they broke, he agreed to take accountability of the fan and Steering rack, which they manage to fix the steering rack but with the fan he asked his administrator to let us know that the fan is costing R2000 he will contribute R1000 and I must contribute the balance which was not the agreement since they are the one who broke it, I still don’t have my car as today (25/10/2025)On the 20/10/2025 when I went to the workshop he told me my car doesn't make money for him, he is prioritizing the cars that brings him money he even showed me the job cards. I have tried to call him he hangout on me. I am frustrated and don’t know what to do.