The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://ebms.olympia.co.uk/ebms/ungerboeck.cshtml?aat=s0YGGeQDV1F%2bxwFTIq0CjppjUZdM2byyBkOK1Xww4N8%3d