Disclosure of usage data to Facebook:
Only in the case where you arrived on our website by clicking on a Facebook post or page that we published (either paid for advertising or organic), we transmit usage data, generated using Facebook tools, back to Facebook, solely to aid in tracking advert effectiveness. This data is only used to track the performance of our ad campaigns, and is only analysed by us in aggregate for statistical purposes. We may additionally use this data to refine the audience to whom ads are shown, in anonymous aggregate form, in order to improve the relevance of our adds to new users. We do not use this data for re-marketing, meaning that you will not see any follow-on ads, subsequent to your actions on this website, other than where the campaign would have targeted you anyway. The basis of this activity is our legitimate interest in tracking the performance of our direct advertising, and is limited to that activity.
This form of tracking is not used unless you arrived on our website via Facebook.