Ah! Notifications!

If you had said so in the first place . . . . .

The notification is from RootsChat to the member.
If there is a problem, then RootsChat will learn of it.
But the message will still be on RootsChat - the user simply has to login and check their messages.
Of course, if they don't login then they won't see any messages.
If you are having problems, I suggest you go to the Home Page and click on "Contact Support".