Myntra.com — return and refund denied

Address: 110017

I ordered a dorothy perkins shirt from myntra and they sent me a roadster tshirt with a dorothy perkins tag on it. I shared the pictures the bar code and the price tags and i was not given any assistance and i can't believe these people misusing their monopoly and doing non sense in the name of authenticity. I need my refund and strict action against myntra.