The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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.lawgazette.co.uk/commentary-and-opinion/aml-and-the-sra-time-to-root-out-the-bad-apples/5104895.article?utm_source=gazette_newsletter&utm_medium=email&utm_campaign=Competency+spot+checks+%7c+Contentious+probate+spike%3f+%7c+AML+and+the+SRA_07%2f08%2f2020