We can’t tell from out here whether this is account-level or app-level, and I’d be careful with anyone claiming certainty. Apple’s guidance is to reply to the rejection message with specific clarification first, and to appeal to the App Review Board if that exchange doesn’t resolve it. Booking an App Review appointment is probably good for yourself as a developer since you've experienced the issue multiple times, and this may help you with your third question. The one thing I'd suggest, a narrow question tends to get further than a broad one: which specific aspect of this submission raises the concern, and what information would address it. There are some similarities to my own situation that I’d rather not go into. I may well be reading a pattern into a coincidence, so please don’t take it as more than a hunch. One habit worth starting now either way: keep your own copies of the review messages while you can still see them.