Amazon KDP cancelled my account some months ago with the claim, never explained, that I
have multiple accounts, which is a violation of our Terms and Conditions. Also, this account is related to an account that was terminated due to violations of our Content Guidelines.
They restored the account about two months ago with no explanation. They have now canceled it again, with the same claim.
If this keeps happening I will have to move all my books to Barnes&Noble, which would be a nuisance.
For past rounds of this see my posts here in early November.