Finance a broken car

Bought a car at auto city ground Alberton on the 19 of July 23 same day there was a weird sound coming from the bonnet. When I check the bonnet is lose. Lend and right fender has been repair and repaint, shock are finish light are falling off door handlings are falling off body has been resprayed. It’s like I was buying the car in town ship. I gave back the car on the 26 of July 23 I asked them to cancel the deal they said No. as I am writing this the car is with them I don’t want the car anymore and I will not pay the car if it means for them to blacklist me let it be but I m warning you guy auto city Alberton they are *****. I will expose them on national tv as well. I feel like wesbank is failing us as customers as well