They said the system to make changes is not built yet, but that it's coming. So you have to invite yourself as a team member and wait until the feature is available before permanently switching emails. I find it pretty inconvenient, but what can we do?

But the user is already a team member... I'll have to use ANOTHER email address? It doesn't make sense, because the email address that I ASSUME has the T5 codes applied isn't even an account I can access. So I can't log into an account with the credits to send an invitation to... and I can't invite the 'defunct' email address because it was a typo and I don't have access to it to accept an invite.

Jeez, is this deja vu? Im having the EXACT same issue as you in regards to my account and (lo and behold) I can't even get them to make a simple change to the email in the back end. Man, usually redeeming tools here have no problems but the ONE that has no refund option is the same ONE that has the issue.

I've reached out to support and they have me playing the waiting game as well....