Nokia E 71
Handset not working from the day 1

I bought a NOKIA E 71, details given, its not working properly from day 1, and when i approached the concerned, they are just ignoring like anything.and not taking it seriously.please help..

IMEI= 351940030926457

Invoice= 1081

Ref. no.= Madhu.9419187298

Bill Dated= 22-may, Rs. 19, 800

Dealer= 21 st Century , 11 A, Extn1, Gandhi Nagar, Jammu-ph. no. 0191-2457884

Company's VAT TIN: 01731051213