F5 Certified Practice Exams

I was able to log onto the exam site and take 1 of two tests I purchased, however when I attempt to go back to take the second exam, I get a failed account ( username/password) I click on the reset link and successfully reset my password, but when I try to log on it fails using the new password. This is an indication that the account is locked or disabled. I sent an e-mail to the support center and even called and talked to a support person both have been useless so far. I assume they have a 24 or 48 hour turn around which is quite disappointing.