Deliberate Poor Service and ****** customer service

I brought my new subsidised bakkie for fitment of accessories (canopy, nudge bar and window tinting). I was called at around 12:30 that the fitting was done and car was ready. I arrived at 13:50 collected the car, started hearing sound of loose parts when driving less than a km out of the workshop. I went back and with little care I was referred to the workshop team that did the fitting to drive with one of them of which I did. Upon this first return , it was discovered that the left rear light was not fastened and the canopy was misaligned. They "rectified" and informed that they have completed and I left with no communication/explanation/apology from Management. I realized that the sounds are still there upon driving out a short distance and returned for the second time. Still the Management did the same thing, this time the team identified that 3 nuts were not fastened on the nudge bar. I left after the team informing that they were done and are confident that the problem is resolved. I realized that the problem is not resolved because the sound is still there but decided not to go back anymore as they were wasting my time. There is bad service here especially when you are black. Attention is given to white race customers and blacks are treated like they are there to ask for a job.