Hello there, @jwstricklin.
Thanks for making a follow up on the investigation under INV-52160. At the moment, our billing team is reviewing why you're unable to change your billing status.
If you have contacted our Customer Care team, you will be receiving updates about its status. Otherwise, I'd recommend you do so so you'll be added to the list of affected users.
For future reference, we have resources available for you in our QuickBooks Articles hub. That's where you can search for topics about managing your QBSE account.
I'll be here to help you with some more if you have further questions. Have a great day.