The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.
http://news.thefa.com/HS?b=yvyH8jdF0yIjvi4S3PliOh46rB_Q8EnYlBK7zAbaIpX4JAep7ynqfD8ORmyZTCzX&c=UIMh5BqVheKDMIyCnC-UNA