Nokia 7310 supernova
PROBLEM IN KEYPAD

I HAVE PURCHASED MY SET ON 27.02.2009

AFTERWARDS ON JULY I HAVE ENCOUNTERED PROBLEMS RELATED TO KEY PAD (7, 5, 9 AND THE MUSIC VOLUME HOT KEY). IT WAS RECTIFIED & RETURNED DURING SEPTEMBER BY NEAREST NOKIA CARE CENTER.

BUT FROM 12.12.09 I AM AGAIN ENCOUNTERING THE SAME PROBLEM IN MY SET.WITH 7, 5, 9 & MUSIC HOT KEY NOT WORKING.