Please I really need help

I have been ****** by vw Arcadia.i bought a car on 26/09/25.So I realised that is starting to crack is like the paint is peeling off.I took the car back ,the manager even he saw the problem but he forced and took the car to work shop.I called vw SA they called the dealership he **** saying he fixed the car I must come to fetch it only to find when I arrive there it was still in the same ,they called someone to come and fix the scratches as the manager claimed ,that guy told them he can't fix it's a body filler and manager could not careless he walked away like nothing happened .so when situations like where must I go because I needed him to do a replacement deal because he can't fix the car he refused I can even provide with photos or bring the car physically .it like I bought a car from auction