Terrible service from Weiss

On 01/09/2019 i purchased a Polo tsi from Weiss in Durban,on 02/09/2018, I found the car to be faulty....on 03/09/2018 Vw roadside assistance had the vehicle towed to Barons in Pmburg,was told by the technician from Barons car has factory fault on 13/09/2018....when the car was taken away the manager from Weiss didnt give me a courtesy call or provide me with a courtesy car , only after I called Vw customer service did Weiss call me on 10/09/2018 to arrange a car for me which i refused ,I just wanted a new car which I am still waiting for up until today , I asked yesterday for they deal to be cancelled and I am still waiting .....I have paid a deposit and insurance has already been deducted for the car which I dont have ....please help me someone ...what can I do the dealer principle manager called me and my hubby saying that theres nothing he can do theres a process to follow they are unsure how long this is going to take