I'm having this same issue. I just purchased a 2nd crew skill slot for all characters and claimed the item i purchased.
When I go to a skill trainer, I get "...You may learn 1 Crew skill...". WTF?
How do I activate the second slot?
Edit - moved posts - to consolidate into one thread.
Generally with unlocks claimed from the CM they go to that characters inventory where the unlock can be consumed to apply to the account or character.
The unlocks can usually be moved to other characters, or even sold on the GTN, check the GTN out alot of things bought on the CM with cartel coins can be purchased on the GTN with in-game credits too.
