Donna
The DWP requires certain conditions, due to their complexity or need for specialist knowledge to be assessed by doctor rather than a nurse of physiotherapist. You obviously feel under this rule although this should have been obvious from your ESA50 so you might want to consider a complaint about the wasted journey.
www.chdauk.co.uk/contact-us Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems