The page you requested doesn't exist. Here are a few things you can try:

• The page might exist at archive.stopjunkmail.org.uk (which is an old copy of this here website). If you prepend "archive." to the URL showing in your browser's address bar then you might get the page.
• If that doesn't work then you can check the URL in the Wayback Machine. You can also try the UK Web Archive, though they appear to have ongoing issues.
• If you were looking for information about stopping letterbox spam, there is a brand new Guide to Stamping out Junk Mail. Alternatively, both Citizens Advice and Which provide quite good information about stopping junk mail.