Depending on where you bought it, there's different cd keys. For me, (for example), I bought mine on Amazon as a digital copy. Apparently the code that I got in the email was a early access key and not the main game key. You'll have to go to the amazon site for the games library and get the cd key from there. After that, you can put that into Mog Station and on your way to playing..

But as of right now, servers are full.