The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://track.vuelio.uk.com/z.z?l=aHR0cDovL3d3dy50cGFzLm9yZy51aw%3d%3d&r=12521763566&d=10045079&p=1&t=h&h=b1929636b065924581d90deb114b8106