To block (or remove) a friend
To block a friend from exchanging messages with you, tap the friend
in the Chat screen. Tap (or press) the Menu Key 
, then tap Friend info. Tap Block (or Remove) at the bottom of the screen.
To block a friend from exchanging messages with you, tap the friend
in the Chat screen. Tap (or press) the Menu Key , then tap Friend info. Tap Block (or Remove) at the bottom of the screen.