Same thing happened to me. It was in review for 12ish hour, then I got the same message and the binary was rejected. I emailed support like they said and have not heard back yet.

Wow 17 days, this seems super excessive for reviewing apps. Has anyone had any luck resubmitting after getting this rejection?

After getting the same message a few days ago, I emailed support just like it said. I recently heard back with a generic message: Thank you for contacting App Store Review. From your request, I understand that you are following up on the message that you received in the Resolution Center in regard to your app. I understand your concern regarding the extended review time of your app. However, we still need additional time for review. No action has been taken against your app at this time, and I have escalated your request to the appropriate internal team. Currently, there is nothing more that you need to do, and after we complete your app’s review, we will notify you via the Resolution Center of any next steps. No further updates. Not sure if I will need to resubmit or just wait it out. It would be a bummer to have to wait weeks to months like other devs are having to do.

My app was rejected 5 days ago and it just went back into review with this new message in the resolution center: Hello, We are writing to let you know that we have completed our investigation of your Apple Developer Program account. You may now submit apps for review, and we will continue with the review of this app. If we find any issues during our review, we will communicate them via Resolution Center. Otherwise, your app will be approved. Please note that all apps submitted to the App Store are reviewed against the App Store Review Guidelines, including the Developer Code of Conduct. You can avoid future investigations by ensuring your apps don't attempt to mislead or harm customers or undermine the review process. Be sure to review the App Store Review Guidelines and read the Developer Code of Conduct so you understand our requirements prior to submitting any apps for review. Best regards, App Store Review I am not sure why my account was getting investigated, but it's a good sign they are in review again.

@ucelme It's difficult to say what you should do without really know what your app is or contains. It's frustrating when they do not tell you specifically what is wrong with your app. I've had issues in the past with similar messages and it was relating the the name of my app. I had to rename it so it would not confuse users or mislead them to thinking my app was something else.