Hyundai paint peel.

I bought a Hyundai I20 from Hyundai Constantia Kloof, the paint started peeling after 18 months and has not stopped. Hyundai refuse to respray the entire car, and will only do the problem area. the car has been in 5 different times for the same thing. and each time the car is away for at least two weeks. Constantia are sympathetic but will not fight for their customers. do not buy a hyundai!! ..