The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.
http://r20.rs6.net/tn.jsp?f=001RT-ZDDnbYrVHosQ5cN64KmgYtMe4-KIo8cclErMd9aBMEFuPXNxp9TokAKQ7U2qjAMQDHmorl2D4_gu2-c8yKS8Lg0vW2ac77HJZ-H8b6GBMTkyPuVvzHB2Elm15ZDxNc8O-8C0hMqwkpXnxlWzNHEb60mw80w8P2VD971L7fVtI-wcEx8ko8onPBqchg5ljwFbWt_o0kBo28HhXBjt3vV5woC1AbL8eYumrIDrqAxE=&c=Yna18LyKlw2tT1Gq4YhGIa54P76fU67XceKpdpaN6fj6OnETbEdrWw==&ch=_4-uATU2GnrOPMq3Mn8N7HES-pe4fbDZw4KojJQPl6a9pJnsfPY4Gg==