Quality problem partial leather seats IX35 ????

Hello Forians, do you also have problems with the partial leather seats? Driver’s seat was replaced after 2 and after 4 years. Leather parts of the seat porous and even torn in the second time. Both times exchanged on warranty. Passenger’s seat now after 4 years porous and threatening to tear. This seat is hardly used!!!!!! Answer from Hyundai: That would be normal wear, no guarantee. Please? In my opinion a leather seat after 4 years may not look like this yet. 29000 KM down and, as I said, the passenger seat is used only little. Every motorcycle seat lasts longer, although the much more loads are exposed. Do you have similar experiences? Greetings Frank