Puma — got defective shoes. 5500 is stuck with puma

Address:

New Delhi, Delhi

I bought puma shoes for 5500. They were defective so i returned it within a week. They gave me 5500 slip after 15 days. I tried in 4 different puma store and didn't find any good shoes.
And that slip is not working in any other store when they promised it would.
How it is my problem if you give me some defective thing and doesn't even give me my money back.
Phone number:- [protected]