Where are they?

Okay, so let's get things straight. I pre-ordered through the Square Enix store because I was promised that I'd get really cool DLC and thumbstick covers for it. So I pre-ordered.

The game arrived about a few hours before the time of writing. I've got the thumbsticks and literally nothing else in the parcel aside from the registry card and of course the game.
Is there any way to get like a code or something to get these DLC items? I feel like I've gotten cheated and I'm reluctant about playing because of this severe issue.