User blog comment:MB543/My proposal to Ubisoft/@comment-24095203-20131130150152/@comment-13471981-20131130160518

I assume you're on Playstation? You should go to the Playstation store, select "redeem codes" and then fill it out. It should automatically point you in the right direction, after which it'll be downloaded. It did take two attempts with me, so if it doesn't work initially, just try again :)