UNACCEPTABLE AFTER SALES SERVICE POOR SERVICE

So i baught a car from this dealership they promised to fix a few errors on the car. a week passed and only a scratch was fixed, they came to fetch the car and drove half a tank of petrol out and brought back the with a empty tank. two days later they came to fetch the car again to fix the fog lights, again drove about R200 petrol out and brought it back empty. fog lights still not fixed. they told me that they dont want to pay to expensive for the lights so they will get a "Sparky" To fix the lights. the headlights cant adjust and i mentioned it to them. the came to fetch the car for the 3rd time. got the car back and nothing was done. again R200 Petrol out and tank empty. i keep on calling the sales person aswell as the person who does the repairs and they tell me they will get back to me, but that never happens. they also said they will refund the petrol and i didnt hear from them in the last 2 weeks. I honestly dont recommend doing business with this compay. due to a very bad after sales service experience. The way i see this whole situation is that they got their money and dont give a **** about the client who has to sit with the problems they pronised to fix. I am going to take this futher until i get the results im looking for