Similar issue. Our app, first release, was rejected for “other reason” on October 8, and we got a template message at the same time which said,
We need additional time to evaluate your submission and Apple Developer Program account. Your submission status will appear as "Rejected" in App Store Connect while we investigate. However, we do not require a revised binary or additional information from you at this time. While there may be a delay due to high submission volumes, we are working to complete our review as soon as possible. If we notice any issues that require your attention, we will let you know via App Store Connect. If we find no issues with your submission or account, the submission will be approved.
Then we tried to write reply to the review team, resubmit the app, and make an appeal but nothing worked. We still haven’t got any information since then, almost 6 weeks. This is really unusual. Our app ID is 1624344206. Should we make an appeal again or just wait, or is there anyone we could talk? Any help would be appreciated @Andreas,@AppReview. Thanks a lot.