Thanks for the suggestions. As of October 1 (JST), the submission is still "In Review" and the PPO submission is still "Waiting for Review", with no messages in App Store Connect. What I've checked: Business: the Paid Apps and Free Apps agreements, bank account and tax forms are all Active. Nothing is pending. Account Holder email, including spam: nothing from Apple. Demo account: not needed. The app doesn't require an account, and nothing about that has changed since our previously approved versions. Contact Us > App Review > App Review status: already used on September 24 (case 102974323139). The reply came from Developer Support with a standard message. App Review team: if anything is needed from us, please let us know in App Store Connect and we'll respond right away.