First I had to change my password in gamesas account. (had an account already with gamesas) If your not sure you have an account use the forgot password with your email address. Also try an email you may have used in the past. You may have signed up with that email it and forgot.
Second I have multiple user names in my Gamespy account so I used one of the other names and it worked.(with new password from gamesas)
It worked for me and it might work for you, try it. Good look!!
My conclusion is that Gamespy must consider one of my user names as the primary name and that Gamespy is connected to gamesas.
They really need to fix this problem!!!!!!