Just received an email from Kindle Direct Publishing, which deleted itself when I closed the email.

They have completed their review and the cancellation of my account and termination of my contract with KDP is now permanent. I will receive no royalties, and I am permanently banned from opening another account with them or publishing any more books with them. No further correspondence or discussion of this matter will occur.

I contacted Amazon and they said they'll look into it, but I am not hopeful.