The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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.com/v3/__https:/www.healthpoint.co.nz/covid-19__;!!A3teau8g8Q!D1YDyikQVSrT6xpvvdKlwyPOfR0BwOZ_os7dxkinvlbPsgmcEIstrc6lUPvRMdC1m-I_0-gtxQ$