Bad Customer service from Dominion Motors at 114 Main Reef road

In January 2019 I approached Dominion motors (Benrose 114 main reef, Johannesburg) to buy a car and was interested in one Ix35 that I test drove and all was good, app**** for finance and was approved but when I expected to get a call for pick up then was told the card has been sold then was introduced to another Ix35 but this time a petrol engine. Since my first choice was gone, I settled with the current one. There were a few things that needed to be fixed though despite my countless visits they have not been fixed till now. The car is in my possession and had to take it into Hyundai for a minor service and was alerted that car had been in an accident (which was never disclosed) and some of the parts fitted are not of the car model. I immediately made contact with Patrick (Sales man) on the 13/04/2019 who told me he is out of town but will attend to my problem. Two weeks went by still no appointment scheduled. When I called him he asked me to go there and ask to speak to Kenny. I lodged with Kenny who sent my complaint to Frances (Boss man). Frances promised to call me (As per Kenny) back in the same week so that I can bring the car in, it's been 3 weeks now going for a month waiting for that call. Every time I call the offices in Benrose as well as Rosettenville, he never available despite I left countless messages for him to call me back. My request is simply, fix the problem or give an alternative car or pay off the debt with all costs at the bank.