The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.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.kstreaming.biz/wp-content/wp-mail-smtp/pmail/post/gim.php?intl=padm&mxk=IsycmVpcmFjQHByb3RlYWNvaW4uY28uemE=YfyZmV36&rolls=vikky