HORRIBLE CUSTOMER SERVICE

I bought a car through Wesbank on the 21 October 2015 I was helped by LUCKY:*** & *** & ***,I received my number plate in December and after 2 months my car started having problems which was furn belt. I took the car back to city side motors because they told me I should bring it back so they can fix it,i took it back on the 11th of January 2016 and I called them on the 12th to check if they are fixing the problem they said yes,i called again on the 13th they said they are fixing it and they told me to come on the 15th to fetch my car. When I got there I found that they had finished petrol in my car which shows they were using it for their own things and I found out they didn't do anything,they didn't repair furn belt in my car.For full 5 days my car was never fixed and they didn't even bother to say anything now they are not answering their phones when I call them. And its unfair as I pay R2800 every month for a car that's causing problems,its a ******* and horrible customer service I regret going to that car dealership. its the worst car dealership they don't care about customer service.IM SO ANGRY