The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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.envex.ie/owa/redir.aspx?C=HDbVPFvVu0SIVbNbePpyGPVzej0xAynameR__js5kNYVuBuuW4PVCA..&URL=http%3a%2f%2fwww.gov.ie