Also, don't underestimate an importance of a ticket update (any update). If you observe a few open cases on Reddit or Twitter, you will see that the worst thing you can do is say nothing - no ETA, not even an acknowledgement... it's the complete silence that makes people freak out and open multiple cases, spam multiple channels, only aggravating the problem.
1. Search docs for how to deal with lost 2FA device. Find entry about it.
2. Docs say, "contact support to blah blah blah" with a link to a realtime chat thing for support.
3. Ask question in chat thing.
4. Receive a link to a web page with a description of what to do from the chat bot
5. Follow those instructions, which involve logging in with a different browser (or incognito) and clicking "lost my device".
6. Verify identity, etc. etc. which finally gets the ball rolling on fixing the problem, which takes a couple of days, as I think it actually involves a human at this point, though I never actually talked to one.
It wasn't super painful, but it made me think, "What idiot came up with this? Why would I want to talk to chat bot only to have it take me to the web page that it should have directed me to in the first place when I was looking at the documentation?"