Hello! Sorry for the late reply. I would say that the solution to the problem depends a lot on the type of your app and the content it contains. In my case, I think they finally realized that I'm a real app developer because I recorded a video of me using the Google Play Console clearly showing that the app I'm trying to upload to App Store is there.
For some guesses it is better to look at your app (by name, if it is in other app catalogs or on youtube).
Topic:
App Store Distribution & Marketing
SubTopic:
General
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