If you have a viveport subscription, you'll have a confirmation email. If you can find that email, that should give you the email associated with the account you used. If you're still having trouble with that, send me a PM here and I'll give you instructions to email us.
"Welcome to the desert of the real."
If your base station has a Fault 02/03 error or a red light or both, the ONLY solution is to contact our support on vive.com and set up an RMA. There is no user fix for this issue.