NTT Stellenbosch, utterly poor service

I bought 2 vechiles with NTT Stellenbosch, end of January this year. One is a 2016 Polo eclipse, the other is a 2022 NP 200 bakkie. They were very eager when I signed the deal etc, however a month ago, I started hearing engine noises, notified them, were then asked to bring in the vechile, left it there for 4 days and they could not find an issue. I took the car since the sound was "gone". The real issue came even with something else being wrong now. A week ago, my left wheel,made a funny noise, when I took it to a repair centre, it was found that the strut mountings and front lower control arm bushed were broken or worn out.(Which I had to pay for myself) My issue is, I only have this car for less than 6 months, and they not willing to help. I am disgusted with the after sales services. Would noy buy from them again or recommend them to anyone.