Unfortunately at this point, if that link doesn't work, and the one in the email you got originally from BMG when registering doesn't work, you'll need to send in an email and ask them to assist you;
info@blankmediagames.comMake note that when you first email them, it'll send you an automated response. Read through it, and then respond, so they get the actual email from you, following their isntructions in the automated email.
Thanks!