Skechers India — skechers gowalk 5

I had purchased this shoes from sketchers store in mumbai and started developing blisters on my toes, they asked me to submit my shoes. I had dropped them at the store from which i purchased and they said within 5-7 business days they will do qc and call me. It’s been 28 days and i am yet waiting, what do i need to do, now there’s no response also.