"FaceTime is not available in Saudi Arabia."
That is correct.
This has nothing to do with Apple.
Your government does not allow Apple to include the feature.
Ask your government when they will reverse the ban they put in place and allow Apple to offer it.
Perhaps your government has a web site where you can ask them.
Saudi Arabia is due for an Arab Revolt. Go to the streets and topple the Royal Family and the Islamists. Maybe then you can change the restrictive policies.
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