Need help verifying site

I have gone through all the methods given to get my Web Site verified and none of them seems to Work.  The web site has two addresses www.riversidecathotel.com and www.riversidecathotel.co.uk (so I only have 1 version of the site.  I have registered the .com and tried placing the file in the root, but no luck (it does not get displayed publicly).  I therefore removed the file and added a meta tag to the Home page and tried again.  Same result - Authentication failed.

 

What do I need to do to get this to work?

 

 

[edit: Changed subject to reflect move.]