Welcome to the forum, you'll find the members on here are a friendly and helpful bunch 🙂
sorry to hear of your issue. Might be worth trying another Audi dealer. This is what I had to do when my daily (Ford kuga) had paint issues and it's regular dealer wouldn't have it that it was warranty. This is what I advise you try.
alternatively if you've bought your car on finance a d it's with 4 weeks you have the right to reject it. Especially as there's a paint defect. Even without this you have 4 weeks to return a car for a full refund under consumer law.