Myntra.com — exchanging my order

Address: New Delhi, Delhi, 110008

I had ordered eego italy shoes, they were defective and seemed already used i didn't even try them then i logged to exchange them the delivery boy didn't exchange it saying shoes are too dirty and he can't take it otherwise he will be debted for them, he told me to call on customer care number but no-one received it, i had complained earlier also but got no response... Look into the matter asap