There are numerous reports that users who purchased Fable III DLC recently may have issue activating the content. We are currently investigating the issue and will update this announcement when there is additional information.
If you have not activated codes yet, please make sure to only activate using the in-game panel. (Hit the "Home" key to bring up the menu, click on your username, then select redeem code). Do not redeem on xbox.com at this time. You may need to follow the steps below if it does not activate.
The first troubleshooting step will be to remove and reinstall the GFWL marketplace client. You can uninstall it through the control panel and reinstall it by visiting Xbox.com
(The direct US link for english is available here [www.xbox.com]
Issues with the base game CD key activation should be resolved at this time. For more information see this thread: http://steamcommunity.com/app/105400/discussions/0/648812916995038529/