As far as I know, unlockables and such are reserved for patrons only. I'm not sure if this is intended, though I think it is, but if you just type in your fantasy card code for whatever level patron you are, you get all the customization features and the ability to unlock new things like costumes/hair. Unlockables always showed up as "Restricted/Unobtainable" at the end of missions before I put in the code, but worked just fine after. Mind you, I don't know if lower tier patrons get this, as I paid for the Eagle Patron ($10), but I imagine at least the $5 one will get you access to it as well, if not $1 as it has its own fantasy code I believe too.