Mobile J-600
Very poor service

I purchased a samsung mobile (SGH-J-600) in feb, after only six month i got a problem that phone was hanging and no display anything on the screen.i submitted my cell in Allahabad service center on date 03-11. till now they have no any responce for my cell and everybody is unable to say that when will they return my cell, even i belong to share market and computer center, so i am suffring from amny prolems, but samsung company or their service provider can not understand people's problem..plz help me sir... if u can... so plzzzzzzzzzzzzzzzzzz