I'm in the same boat! I can't figure out what my account number is. I've seen responses here that some admin's ask to PM them but I have no idea how to do it. I tried calling customer care and they're not even taking calls due to I guess being short staffed right now.
I need my account numbers from my family plan for my tax records. There is currently no way of contacting customer support unless you can get through to a chat agent during the hours no one is awake at.