R3000 Airmax 90 Defective

I purchased a pair of Nike full white leather Airmax 90 at the Archive store in Blueroute Mall less than two years ago. I wear my sneakers maybe twice a week at max for not too very lengthy periods. I use special cleaner as well as leather protector as well as sneaker protector. The inside of the back heal now has a defect where the sponge has slipped down behind the back of the fabric making it very uncomfortable to wear. Also the white paint on the soul part is coming off making my soul look yellow. I called into the store and they have told me they only have a 6month warranty policy now I find this absolutely unacceptable seeing as they are selling the nike brand and that Nike offers a two year warranty. I would think that paying just short of R3000 for sneakers they would last longer especially when cared for. As a company which sells Nike Brand there should be something in place where they need to abide by these same standards. I am not buying Archive Sneakers I am buying Nike sneakers.