"I'm signed in but I can't get to my org"
- You signed in with a different Google account than the one that joined. Check which one, at the top right.
- Your invite was never redeemed — being sent a link isn't the same as having used it.
- You were removed, or your access was revoked. An officer can see this on the roster.
If none of those fit, tell a human — include the email address you're signing in with.