The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://www.hpsc.ie/a-z/respiratory/coronavirus/novelcoronavirus/guidance/vulnerablegroupsguidance/COVID-19%20Guidance%20for%20Homeless%20Settings%20and%20other%20vulnerable%20group%20settings.pdf