The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://tuairisc.ie/imni-ar-iascairi-go-bhfuil-diobhail-a-deanamh-ag-tastalacha-comhlachtai-ola-agus-gais-dainmhithe-na-mara/