I tried buying Voices of War but I’m getting an error and can’t buy.
Any help?
This is ridiculous. 
Is there any way to make it available again?
It’s available to US-people only. -_-
(I play with English audio anyway)
Hey OP, unfortunately the pack had to be removed shortly after release due to an unforseen issue in-game with non-english regions. ske7ch noted this in the latest Community update saying that the team are working on a fix and it should be dropping with the next update due early next month. Going to lock this topic up in favor of another active one here, I updated the OP with the latest details: https://www.halowaypoint.com/en-us/forums/e0d9938206f04a598ce84f2c8cadce02/topics/unavailable-can-t-buy-voices-of-war-req-pack/f58192a4-2cd3-40ac-adde-9f0c6538188e/posts