US only. Each token is worth $15 of bnet balance.
https://www.reddit.com/r/wow/comment...rs_to_be_live/
Screenshots from that thread:
http://i.imgur.com/8NNfSHj.jpg
http://i.imgur.com/242t9JH.jpg
http://i.imgur.com/yESAQcD.jpg
http://i.imgur.com/ZoC3P3q.jpg