This page describes what information they gather, how we use it and why we sometimes need to store these cookies. We will also share how you can prevent these cookies from being stored, however this may downgrade or 'break' certain elements of the site’s functionality. </p> <p> Cookies may be either "persistent" cookies or "session" cookies: a persistent cookie will be stored by a web browser and will remain valid until its set expiry date, unless deleted by the user before the expiry date.