The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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-2FFx3WRNLy61Kk9UZV24bszwGY1ZftjVUWo-3D_vdurf4ZkjP4G-2Fr52DSrqnvS-2Fga1wIcFfc9OV70ykhDX0ynyk1wUahspXj8HQf2