Myntra.com — I'm unable to return a product which I ordered. It was already used

I ordered a pair of shoes and I have got the delivery on the scheduled day. I have opened the package and noticed that it was somewhat used and not brand new. I have created a return request. The Myntra pickup person checked the product and claimed it to be used and kept the return request on hold. I have said the same thing to the pickup person that I have recieved the product in the same condition. I just don't understand why they do not believe the customers. I just want to return the product and get my money back