Can someone help with this strange issue?

Can someone here help? My co mod of my sub had his account deactivated by reddit and forced a password change. The problem is they don't have access to their original email so they're unable to do it. But they're able to log in/log out of the account.

Another co mod of my sub had their account shadow banned, and they didn't even make a single post/comment across reddit anywhere.

Multiple appeals have been raised but no resolution.

Can someone here help? It would be much appreciated.