Unplayable storage and download issues

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Device Type: iphone 13 pro
Device Model:
Device Operating System:
Diablo Immortal App Version: latest

Critical bug. App is asking for 20gb plus of storage when the phone has over 12 gb of free space. But the resource downloads are 600mb or 4gb max, which is much less than 20gb. Nothing downloads as a result and the game is stuck around level 25. It should use the available free space not demand more space than it currently needs. Probably has lead to mass uninstalls and lots of lost revenue.