They should both be
http://www.claritypropertyinvestments.co.uk
and then adding this to your .htaccess file in the wordpress root directory, should fix your problem. (This works for my site anyway/server...)
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress