This is the last batch, they are for EU and NA, and they give 1 day of Premium and a Coca Cola consumable:
http://na.alienwarearena.com/giveaways/the-world-of-tanks-bonus-code-key-giveaway?utm_content=bufferd5fa4&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer
One more thing…
Did you know that you can surf with your tank? Check it out: http://gfycat.com/OrderlyGiganticKodiakbear
