The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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://74n5c4m7.r.eu-west-1.awstrack.me/L0/https:%2F%2Fwww.jrf.org.uk%2Freport%2Fminimum-income-standard-uk-2020/2/0102017614b503de-c359573c-11df-4aab-b025-78d1e3226eaa-000000/9-i7cFeNDob2fj91reyEoxdYFGE=190