Changing email / log-in info?

I'm wanting to change my log-in information but apparently you can't.

Currently I am using an old college email account from a faux-facebook page I set up to play browser games like this one so that the game would not spam the wall of my real facebook page. And I know that sometimes vouchers get sent out to this email along with news updates and other stuff from the game.

This is why I want to change the information but I don't think there is even a way to do that.
Does this game only let you sign up through facebook?

TL;DR: I need to know how to change my log-in email.

I don't know if it changes the log-in email but here in the forum you can change it under Settings. You find it on your top right. Then on your left side you have a bunch of options; scroll down to My Account and then you'll find where you can change your email.

Edit: got my left and right mixed up...

Ah, thanks. I hope this works now so that it routes all new updates to that email.