Thanks. I just went and disabled it. I also found that they had “products and services notifications” turned on. I know I attempted to disable all advertising and monitoring stuff shortly after I signed up, but I can’t say for sure whether I had missed this section at that time or if they kindly turned it on for me between then and now.
Are you logged in? It appears you can go to the privacy settings page and set some (not all) settings without being logged in.