Where should the Prestige Armor appear?

Hi, does anyone know where is the prestige armor supposed to appear? I just redeemed the code but is nowhere to be found in my game. Not on the customization options, not in my armor list, and not in the manufacturing list.

Am I supposed to start a new game to get it? Seems pretty dumb to have to restart a campaign I already played for a couple of hours just to get a skin.