Hyundai South Africa

We got a Hyundai I20 which was bought brand new back in 2013. Fast forward. Last year we had paint pealing and areas that weren't painted properly. Approached Hyundai and as the car is white, this was a batch of cars from India that had this problem. They duly had car repaired at their expense. Early this year the bonnet and other panels that were not repaired are show the same malady. They asked for car to be brought in, they got a quote for repair but they only want to pay 10% of repair. If this is a fault of their manufacture them I don't see why I'm to foot most of the bill. I'm a pensioner and and don't have funds freely available for expenses of this nature. I'm not impressed. Always rated Hyundai very highly but this has dimmed my view of them