Selling s**** cars but call them brand new

I bought a vehicle polo vivo maxx 1.6 in september 2019 and the car has been giving me problems since then and no one cares from the garage and all they tell me is to speak to vw SA and vw SA says i must talk to the dealer which is barons durban and i even tried to get into more debt by getting another car since i am struggling with this one but as soon as they see it was me i was blocked no one want to talk to me .....the way this people do business is very unprofessional and disrespectful to their customers.

Thank you