Uh, like the subject says, hi guys

I'm new here and pretty excited about the game, but I have a couple of questions:
1. I can't seem to gain any exp when I complete missions/win against bots, what's up with that?
2. I clicked the "Play Free" button on the game's site to get the client, is it different from the "Enter code" one? Because I was starting to think that miiiight be why I'm not getting any exp when I play.
Glad to be part of this community

Sorry if this isn't the place to ask.
