Ok so I'm a little mad – Call of Duty: Zombies Review

So I played and played some single player and it was AMAZING but the 2 reasons I downloaded this game it was cheap and for the multiplayer and to my surprise its impossible to sign up the keyboard will not go up when I try to sign in so please fix this problem or I want my 5 Dollars back
Review by mote70 on Call of Duty: Zombies.