The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://mailer.kilkenny.ie/l/Wa4AYZJPCK923QQotPJAmw/6h5yg8892tC05vX0XqbPJh892A/fT0nYR1gI4Lfd7WdtRr7WQ