The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://email.mediahq.com/wf/click?upn=plDLgAMDe-2FFx3WRNLy61KpB7J-2FAwbvs2atASexpn1lo-3D_5uKmk5ftz86vyuvwWGEHhcYe0AJpHQVEuBr7J8wpjz5HeBHYSSnZVR9uqACApNSW1GICj-2BUXC1aB5PpPEFEKTMkBZhY2UcuDOOmMuUc4qA6lL8k9LsOt4S9A5xZPW-2FA03QPsblmXtE-2FxxLA-2B7cnCpqCEyX8jPi-2BQWYaG7TFZy0VJbeMkHmTq441UvKJjcBpMhnoL8w0rwu66rec-2FGV14p5J64daxgktKFdLwFKvrf6dmY-2BnqCpt51Cq8myEx-2FT0d-2FaY1n-2BAtRMfosN4YAiSSMQ-3D-3D