Myntra.com — Quality check failed instead product was unused

I have ordered hrx navy blue shoes from Myntra from anja*********[protected]@gmail.comwhose size didn't match my feet size, so I put return request and after careful examination and checking of product it was picked up by agent, but I got that product back because of quality check issue.
Inspite of proper tags that unused product was failed in quality check stating reason that it was used, the product was thoroughly checked by the pickup agent and then also it was returned so either the pickup agent is not right or the product was used itself.stop duping the people and refund my money