Samsung Mobile — Stay away from this one

Address:

Panipat, Haryana

Sir, I had purchased a Samsung grand in August 2013 at that time company was giving a headphone with mobile which was sent by the company at home after registered mobile on website I regregister my phone after that I got a msg on my mobile phone in that a contact number and a refrence number is given bt after that I called on that number and they said give us your contact address nnd postal address .so I had given aftr that I'm still waiting for that headphone still I didnt got . Coustmer care executive are saying that now this offer is closed so we didnt provide you any help .
Now what can I do sir?