Myntra.com — received different fake product

Address: Nagpur, Maharashtra, 440018

I ordered a hrx jeans but recieved a wrong brand product with the hrx tags on it!
Immediately raised a return request and a guy picked it up (I gave him the original packing too).
He comes back the next day and gives my product back (In some other polythene without any tracking id) saying it does not pass quality check and says contact myntra again.
On contacting myntra service, they need the bar code id, which i did not get back when i gave my package for return to the pick up guy.
Order no :[protected]-0879403.