I can't change the domain without contacting their support or paying another $2400. When I open a support ticket, their portal shows 'Unable to find your account' and tells me to open another support request for it.
All support tickets are closed automatically by their "AI" which points to the same article that says open a ticket.
Is shaming them on Twitter my only option left?
Just because someone has a CS degree doesn't mean they actually know what they're doing.
Shaming them on here works better, if you get to the frontpage then their CEO or CTO will probably show up to defuse the situation.
@jgrahamc (former CTO, now board member)