I think logins don't change, only passwords. Likely necessary to either i) contact the administrator to ask for help or ii) start over with a new ID.
Cheers. I love Gerald Ford (but maybe not DeVos) country.
You are only three messages in with not a lot of history. Probably the best thing to do with this log in is to abandon it and now that you know what is going on with signing in is to simply log in new with another name.