Lenovo — Didn't get my hard disk from 3 months

Address:

Bangalore, Karnataka, 560052

My ticket no btc55202 I bought a new Lenovo lap They told me to avail this offer of hard disk of 1tb for only. For 500 I booked and payed amount at exact time. When I called at first time they told that they dispatched my goodi yesterday. I called again and again from three months they are telling me the same statement. Help me