They don't care

I bought a chery tiggo txe 2l in march this year. I advised them that i am having gear , leakage and fuel gage problems in the first month on buying the car. The kilos were on 131000. They suggested i take it to May fair gear box of which it was a struggle to get WBC to pay them. A car was there for a month. Then gears were much better but not fully fixed. Then a week after that i took the car to WBC to fix the remaining problems. They fixed the leakage only. Then last week the car started slowing down on speed and it shows as if there was no oil. Was advised to take it to Bosch services of which they couldn't find anything wrong but i had to pay R400. 00 for that and WBC refused to pay me back that. Well i even asked the 1st month after buying the car if they can rather give me a different car as this one is really giving me problems. They refused. I even asked for a small car. Now the car is smoking so heavily that i ended up buying smoke clear. I feel like from the day i bought this car was the day of starting a journey without a car. I traded my Polo vivo to them as new with no problems and i was expecting the same experience with the one i bought. I need them to either give me another car or pay back the bank the money for this s**** car and take their car back. I even asked them to come tow it but excuses were made. I am afraid to take it anywhere else as i am afraid you guys won't pay. This was my last buy at WBC. I was not treated fairly