Norton DarkWeb monitoring monitors information only since 18/12/2021, instead of 2008

Hi

I contacted italian Norton Technical Support and they told me to write a post here on the forum.
I apologize for my English.
I have Norton 360 Premium (10pcs), and I have a problem with Norton Darkweb Monitoring function in Italy.
Monitoring of information starts from 18/12/2021, instead of 2008.
(Although mentioned on the norton website at the link:
https://support.norton.com/sp/it/it/home/current/solutions/v127344370).
I wanted to know if you could solve this problem, because otherwise the function would be, in my opinion, useless.