Halo Infinite Flight Problem

So it’s been days now and I’ve gotten no helpful reply or insight into why I cannot locate my invite. I have multiple emails that invite me to both halo infinite and halo MCC season 8, but when I get on waypoint I have nothing. I have no “My Flights” tab, I have no messages in my inbox. Why was I invited through email if I suddenly have neither of these things on the waypoint? I was pretty excited to play with some friends, but it seems like I don’t get to play. It’s a bit hard not to feel annoyed. I’m clearly verified and an insider if I have emails indicating I verified myself, joined the insider program, and then got multiple flight invites; nothing on waypoint.

I can only come to the conclusion I’m on the wrong waypoint account, but I’m logged into the email that I have the flight invites on, so I again have no idea what’s gone wrong. Really wish we got the download/keys in our emails instead.

I guess the crux of my post here is, how do I determine what account my invites are on - if they exist? I’ve tried forgot my username and I believe I’ve accessed the accounts that they gave me ( not particularly helpful regardless due to most of the usernames being censored) and I’ve found nothing.