Car fault

Bought a car in September, it had a petrol leakage in November they took the car to vw polokwane, after it was diagnosed they said it's because of dirty petrol but the car didn't come empty they dealership made sure it had petrol before we took it. Polokwane vw now wants R4500 benoni team is saying they won't pay the car has been in polokwane till today there is no solution. I'm paying a car that is with the dealer and they don't have a solution for. Vw such a well known dealership doing this I posted this on hello Peter it's like they delete they reviews it's now for the 3rd time posting a review I'm tired.