SeroFeith

So I entered the code that was e-mailed to me to unlocked all the specializations, and I have just hit level 50 and I thought "Oh great, i'll get to choose Rouge now". Upon choosing Specializations I find that all the ones that the code unlocked have now dissapeared and I only have Wetwork and Operator again. Am I missing something here? What was the point in giving us the code if when you get the level you need for it to even be valid, the game takes it away from us? Any help on this matter would be greatly appreciated. SeroFeith.