Naaptol — misleading information about mobile handset

Address:

South 24 Parganas, West Bengal

Sir,
I post this complain just to inform you that, i bought one piece mobile handset from Naaptol online model no.(VOX VGS-503 Dual SIM full Touch Screen Mobile with Digital Camera) . And they send it on 09/03/13 but that one is not working properly (problems are like- screen touch not working, FM Radio, Mega Pixel 3.0 Mega pixel, net not working)
When i open net on this mobile the error in out of memory, and when i open fm it does not play.
When i had complained about this problem they told send back the product, another product will be given in good condition but they send the same product with above mentioned problem only screen work but not proper.
So, i kindly request you to take some step in this regard.