We have a client who we previously invited to Link, and they used it successfully. Now, when they enter their email to log in, they get the error "We can't find anyone with [email]." It also will not accept their phone number. There is no option presented to recover a username or password. We can still see the portal on our end, the email address we is identical to the one they are using, and there is no indication that they changed it. Is there anything we can suggest to them?

Sorry if there is a better place to post this--the Help button for Link redirects to the Community, but there doesn't seem to be a dedicated Link board.