Brief version
This website uses cookies to distinguish you from other users of our website. This helps us to provide you with a good experience when you browse our website and allows us to improve our site. A cookie is a small file of letters and numbers that we store on your browser or on your computer or mobile device. Cookies contain information that is transferred to the hard drive of your computer, phone or tablet.
These are cookies that are necessary for our website to operate and cannot be switched off in our systems. You can set your browser to block these cookies, but some parts of our site will then not work.
You can turn off our performance, advertising and functional cookies by managing your Cookie Preferences. You can also block cookies by changing the setting on your browser which allows you to block cookies. If you use your browser settings to block all cookies, including our required cookies, you may not be able to access all or parts of our website. Most web browsers allow you to control cookies through the browser settings. To find out more about cookies, visit www.aboutcookies.org or www.allaboutcookies.org. To find out how to manage cookies on your browser, you can visit:
Not all cookies work for the same period of time. ‘Session cookies’ only operate temporarily and are erased when you close your browser. ‘Persistent cookies’ can last for much longer, in some cases several years, unless they are manually deleted.