Myntra.com — Return put on hold due to stain

I had ordered a white jeans. Due to fitting issue i had to return the dress. I had tried and again placed the dress in the same myntra cover in which i had received along with it's receipt. I had handed over the product to delivery guy in good condition. The delivery guy checked the product and he didn't keep the product inside his bag. But instead he kept the product outside infront of his bike. It was raining heavily and i don't know how did he returned the product to the warehouse.. Now my return request is put on hold because the dress was stained. I have not done any stain and it is not my fault... Hence i request for a refund.