Light colored leather seats

Have a 2018 A4 and the front drivers seat got SO brown from regular use. Sitting with sunscreen and sweat after tennis and golf. Even the Audi detailed could not clean it and if fact made it worse. To replace over $1000.00 dollars. Inferior leather!!! Never had this problem with any other car I have owned. High end car with a horrible brown seat when the rest were cream colored. Forced to replace. Corporate and service manager no help. Said they have seen this frequently. BEWARE