No App Support
What if the "App Support" link in the App Store for a given malfunctioning app does not work? Can Apple "push" them to provide a proper support link?
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I would think the app developers are required to have a functioning link there.
But at the end of the day its the app developers that are responsible for the support in any case.
You can try reporting it to apple here:
Contact Apple for support and service - Apple Support
Good luck!