[INFO] DA:I Pre-Order and Special Editions

The Inquisitor Edition of Dragon Age: Inquisition includes a code for mulitplayer bonus items and instructions to redeem the code at social.bioware.com/redeem, but this no longer works for redeeming codes. To redeem the code, please either redeem it through the Origin client (details here) or visit Origin's product code redemption page.

• NOTE: Please make sure you are signed in with the Origin account that you intend to use for DA:I. Verify that your PSN or Gamertag is connected to the account from the About Me page of the Origin account site.

If you have already redeemed your code and have not received the chest yet, please note that we are aware of the issue and you should be receiving it shortly. 

Source: http://help.ea.com/en/article/inquisitor-edition-multiplayer-code-rewards/