The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.
https://www.google.com/maps/dir/51.272378,0.5497005/53.943448,-8.09324/@53.9431676,-8.0969444,15.99z/data=!4m4!4m3!1m1!4e1!1m0