I just spotted these "Yarnhub" offers in the premium store:
I've been playing 2 1/2 years but never heard of Yarnhub. Turns out they are "…an animated film studio that produce films about history. We try and take the viewer into the action alongside the incredible people that lived through these events…"
Here's their latest tank-related video on YouTube (sponsored by World of Tanks):
The WoT promotion is at 1:07. There's a code for a pretty nice starter pack in case you know someone interested trying out the game.
Source: https://www.reddit.com/r/WorldofTanks/comments/12tqvzh/yarnhub_new_world_of_tanks_content_creator/