User blog comment:ProfessorBrickkeeper/Get yerself a free Pirate Captain minifig/@comment-3346931-20150114020452/@comment-4872300-20150114022041

Funcom evidently forgot to activate the code before distributing it publicly, as evidenced by multiple users' experiences. I suspect they will fix it within the next few days. Also, the code came from http://www.lego.com/en-us/pirates/games for anyone interested.