Help me with this plz!

Just bought a beta key to my friend, he used it that moment when you create a account, he has verified the account with his email, but when he logs in on his account on the home page it says he doesn't have an active beta account?? And when he tries to put it in again, it says it used...

Anyone els had the same problem? if so, what to do?
He has sent a mail to the support about it to