Myntra.com — Delivered wrong product and refusing to refund

Website:

www.myntra.com

I ordered a mango tshirt from Myntra but when I opened the courier package, it was some cheap brand tshirt. I thought its not a big deal because it was the sale period of the year so they must have messed up and they would return.
The horror began after the return request was put on hold. The delivery guy came to pick up but refused saying the product is different. Well, yes, I know the product is different and that is mentioned on the return request I created as well. But that guy refused to pick it up and told me to call customer care.
Goodluck trying to get in touch with customer care. They don't respond to emails or calls. After almost 24 hours, I got across and shared the barcode details with the customer care guy. He noted it down. And next day the delivery guy came to pick it up and again refused to take it with him saying the product is different. I am going crazy over here. I have ordered so many times from myntra but never faced such a situation. Finally I get to see the dark side of their team. No resolution is provided. No one cares about you or your money. Its just a scam.
I will nevr be ordering from this site again. Horrible service. I was quite excited to buy a mango t shirt because its an expensive brand and I could finally afford to buy it but these cheats gave me some weird kook brand t shirt. I don't even know what that is. And its not even a t shirt. Its like a mix of kurti and tshirt. Probably the ugliest piece of clothing I have ever seen.
Myntra you should follow good policies. If you are doing well because of the customer, you can also disappear from the map because of the same customer.
Now I got a message that my request is declined. Tell me where to guy and what to do now? I guess its better to order from flipkart and Amazon. Never faced any issues with them. Never going to order anything from this fraudulent website