Same problem. It amazes me a company will charge you 75 dollars for a game that's delivered broken. I was fine with buggy. Not being able to login is a different story.
I did what ZOS_MichaelM Administrator, Moderator admin said and guess what? It didn't work. If you bought The Digital Imperial Edition you probably shelled out $86.59 like I did. Really got our money's worth didn't we?