League member not following rules!

In a Dynasty league I run. It is mandatory to be active have GroupMe and be active. In this league there is one league member who got it for the inaugural draft. But has since deleted and refuses to get GroupMe again.

Am I wrong for just replacing him with no further discussion? Or have I made the correct decision for the leagues future?

In my league there are members who are inactive in the chat, but still actively add/drop and make necessary roster changes etc… and no one sees issue with their reluctance to chat.

I wouldn’t have deleted without explanation. I probably would have held a league vote on how to proceed, pretty easy to do if he isn’t in the chat, and abided by their decision.