can't unsubscribe from emails! (even though I unsubscribed)

I have unsubscribed but keep getting this email:

Hi there-
We hope your last week has been a productive one! Unfortunately, we don't have any app & site usage data for you... So you'll never know for sure!
To fix this, we suggest making sure that you have the RescueTime Data Collector up and running. You can grab it at http://www.rescuetime.com/download
Alternatively, if you'd like stop receiving this email, click customer support community.