You can ask a Chess.com worker for help . I don't think other Chess.com members will have the answer so thats my only suggestion.
Live Chess Chat Rooms
SIMUL NOW http://en.lichess.org/simul/wlBPXPMH

so no more chat rooms?
If you want to have general chat, you will need to join a group/club and chat in their chat room.

in a chess tournament out of five game two player finish up the tournment having 3 points each then whose rank will be lower how can we decide?and send me the exact link regarding this rule?

in a chess tournament out of five game two player finish up the tournment having 3 points each then whose rank will be lower how can we decide?and send me the exact link regarding this rule?
You really should have opened a new topic but the site uses tie-breaks for tourney ranking.
https://support.chess.com/customer/portal/articles/1444840
That is more about Daily tourneys but the same process is used for Live.

I am not talking about regarding chess.com tournamen.I have organised a tournament in our college,so i face difficulty here.that is wh i want to know the exact rule concerning eliminiation where both have same points.if you know please tell me.though this chat room us for chess.com still i want to ask you

There are a number of tie-breaks that can be used. Here are FIDE's suggestions.
https://www.fide.com/component/handbook/?id=187&view=article
For some reason, I can't find Chat Rooms on Live Chess. Can someone help?