Hello,
This property has a bug that i already reported here.
Please fix it.
Thanks.
https://docs.microsoft.com/en-us/answers/questions/62555/uwp-windowsservicesstore-trialtimeremaining-proper.html

Document Details

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• ID: bb7cc4f5-bb6a-12c0-4d93-d3e25b6ac3d4
• Version Independent ID: fb207098-5350-dba6-df64-12402a848642
• Content: StoreAppLicense.TrialTimeRemaining Property (Windows.Services.Store) - Windows UWP applications
• Content Source: winrt-api-build/xml/Windows.Services.Store/StoreAppLicense.xml
• Product: uwp
• Technology: winrt-reference
• GitHub Login: @hickeys
• Microsoft Alias: hickeys