The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://podcasts.google.com/?feed=aHR0cHM6Ly93d3cucnRlLmllL3JhZGlvMS9wb2RjYXN0L3BvZGNhc3RfbXljcmVhdGl2ZWxpZmUueG1s