MS Newsletter

I wanna sign up for the MS Newsletter. To enjoy free nx and pets and 2x exp and stuffs. However when I created my account I unchecked the box that would allow nexon to send promotional advertisement and such. How do I cancel that/sign up for the MS Newsletter?

I went to the edit account info section on nexon's web site. They have you change your password but it also has the check box where you can subscribe to newsletters.