Complaint

I was in car accident and I bought a car with the dealership. When I called them I made a mistake and requested a wrong model which is a Haval H6 1.5 that was different from the car I test drove (Haval H6 2.0 luxary) from our local Haval dealership. I later realized when they sent me pictures of the Haval H6 1.5 that it's not the same car I want. I asked if we can cancel the deal and buy the H6 2.0 at the local dealership. The sales representative requested that I buy from him because he had to buy the red car(H6 1.5) that I requested and later realized it was a wrong order therefore it will count as loss to them hence I no longer taking it. I stayed with them because it was a fair and reasonable request. I didn't have a car and they offered me a courtesy car coz I needed some extras on the car I was buying. I went to fetch the courtesy vehicle at Kempton Park from Standerton. What I liked is that they waited for us to arrive and it was after hours. They told me that the car has petrol but I didn't drive 20km and the was on reserve. My car was delivered on the first of May at my house with a non functional passenger front door. When I informed the sales representative that I am not satisfied he said that is a small issue to be unsatisfied with, from a customer satisfaction perspective there is nothing small in terms of a complaint or quality service . I had put petrol in the courtesy car on the 1st of May and I am told they will not refund me because when they deliver the car they also put petrol in but the petrol meter was near the red line on the new car that was delivered. Today when I insist that I want my petrol money I am being reminded of the the car they fetched from the other dealership that I later decided to not to take yet I was requested to buy from them in order to make up for the costs of the red H6 1.5.