Saudi Arabia's ISP (STC) partially blocked League of Legends?

Firstly the authentication and loading after log in takes ages to finish. After that you are greeted with an infinite loading circle and a a grey "play" that cannot be clicked for 5 mins. When you wait for that long it takes a while to get into a custom game and load up. The ping is a constant 500 and that's that. My friends who also use "STC" have this same issue.
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