Complaint: got sold a car that was not in good condition.

I bought a used VW Polo TSI DSG May 2025, I was assured that the vehicle is in good condition and the DSG transmission it is good as new according to the maintenances, but a month later the car gave me issues and made sounds, they took it back and claimed it was fine, only to find out that the car is using too much oil and 6 months later the DSG transmission stopped working and now I took it back, but they don’t want to fix it or assist, I even decided to take it back and they will add the mechanical breakdown even on the costs for me, which I have to lose more money because they sold me a car that wasn’t properly repaired. They don’t even care about customers, I wouldn’t recommend that dealership for anyone even my worst enemy.