Myntra.com — Received the old used product and they are delaying pic up

Address:

Pragatinagar ashram road near Water Tank Pushpanjali Niwas

I had ordered nije basketball shoes, I received a used shoes with dirt and no tag and the shoe box of ordinary and of some other product...I requested many times but they are postponing the request. They want tag on the shoes, , , , I recieved used shoes without tag, is it my mistake.
Do take back my product and pay back.