Hmm, assumed they were character specific, so I bought two out of the exchange yesterday for peanuts and mailed one to a more financially-challenged toon. guess I can donate that one, or resell it...
Didn't ever really plan to use it, it was just the 2nd best item in the boxes, and on sale for almost no EC, so just picked it out out of reflex...
Sometimes you can find codes for certain uniforms. The TOS uniform codes were a gift from Cryptic to my ST fan club, I think I got the Wrath of Khan code with the DVD or BluRay, the TNG and DS9 were from the Collectors Ed.
I think STEAM also gives away codes from time to time.
In the past, uniform acquisitions were account wide.