my phone not show on setting facetime but why

Does the below apply?

FaceTime isn’t available or might not appear on devices purchased or used in Saudi Arabia, United Arab Emirates, and Pakistan. However, with iOS 11.3 and later, FaceTime is available on iPhone, iPad, and iPod touch in Saudi Arabia. And with iOS 12.4 or later, FaceTime is available on iPhone, iPad, and iPod touch in Pakistan. Update your device to get FaceTime in Saudi Arabia and Pakistan.

FaceTime - Using

Or this?

FaceTime - Find or restore a missing app.      

Your phone doesn't show on Settings/FaceTime or Settings/FaceTime doesn't show on your phone?