Myntra.com — Regarding their return policy.

Address:

Third Floor, AKR Tech Park, 7th Mile, Krishna Reddy Industrial Area, Kudlu Gate, Bangalore – 560068, Karnataka, India.

I bought Nike Shoes from their site on 18 Sep, 2020.The product already had a yellow spot on it. I wanted the return the product but when their pickup agent came, he told me that the product was stained and that I need a "self-approval" from their customer support before returning the product. And then he put the return request on hold and status of the product was updated as "Stained". Now, they are not responding to my queries properly. They are trying to decline my return request. Please help me. I am attaching the photo of the product.
Order ID[protected][protected]
Product - Nike Flex Experience RN 7