I decided to install W3 Total Cache plugin, and after doing so I read your answer on your plugin page -
Does this plugin work with the W3 Total Cache plugin?
Yes, on the 'Page Cache Settings' inside of W3 Total Cache place 'websitez_is_mobile' in the 'Rejected Cookies' field.
But, after following the instructions as above my blog still doesn't appear properly when I used a tester to evaluate how it looks on a mobile.
My blog is http://www.creditrebuild.co.uk