The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://ulsterhealth.eu.qualtrics.com/jfe/form/SV_d51mLtU7UZkZmlL?fbclid=IwAR09s8tmM58XdJIbd3lQzBFygXWzvXjw8uMua3VNXTxFse-KDCcXVRXhyaA