product not received even after paying advance for a long time

Location/place: Ludhiana

Name of company/service: ubislate.com

I looked at their website ubislate.com and found that if I pay in advance Rs.2999/- for the device I will receive the device by the end of march so I decided to pay for the device. A chq. was sent to them in January 2012 which was cashed in February 2012. But I didn’t received the device in march on posting on the contact forum I am not receiving any reply from them when trying to call their toll free number no one picks the call. What should I do?