its pretty frustrating and apparently if you redeem your code on the vita first you can get the skins on both consoles, but if you input it on the ps3 first, you can't download it on the vita. I've heared that superbot is looking into the issue, but they haven't given any updates yet. I guess we just have to be patient, but its rather annoying none the less
Redeemed mine on the Vita first. Still can't download the costumes.
i did the same :/