The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://urldefense.proofpoint.com/v2/url?u=http-3A__www.immune.org.nz&d=DwMFAg&c=NSQ7T1B5-FPSFMM525RIjQ&r=PTVbNzrEecv3xPPuwD16WPF_zfip19cc6qHnnsOT330&m=M4LIkqHTJR_o0l_CcUKnMOViI2i5jeBsb1YQ2RUdQEU&s=zucbv73DF9FGBIOFkntJfIXklaVD3I_HPR8_VxAjoe8&e=