I have 2 accounts, one on EUS19 other on EU95. I used same email for both and want to know if I can (if so how) switch the login email on one of them so I am able to apply "gift code" that I got from gameitems.com to each. As it is I used on one and when I entered on other it said "CDK Binds the user" guessing that means cant use code more than once per login ID even if 2 different server #'s