How do I reinstall Pyramid Solitaire Saga on iPhone with saved game statistics?

What can I do to reinstall the app, Pyramid Solitaire Saga, on my iPhone with my saved game statistics?

My app, Pyramid Solitaire Saga, on my iPhone 16 disappeared, and when I reinstalled it, my current game statistics were gone. I tried to open my account in King Games and it is not recognizing me! They acknowledged my request for help but are not responding with any help at all! I do have the same app on my iPad and it is active and up to date….what can I do to to reinstall this app on my iPhone with my active game stats?

[Re-Titled by Moderator]