I have no idea why I said Dawnguard lol Too much Skyrim >.<
And yeah its Dawngate lol
@Servius the key was good for 5000 uses.
I am meaning you can not use it in Orign its already used there. You can use it on the site me Angel linked.
You could use it in origin, it would pop up saying you have activated an unknown product and it wouldn't show on your game list, but if you then logged into the site it would know you have added the key and let you download the installer.
It would not let me do it.