Hi Darren
I'm sorry that you didn't win your Mandatory Reconsideration. Unfortunately, only 27% of Mandatory Reconsiderations are successful. The MRs are carried out by the DWP. Yours was turned around very quickly indeed, which is unusual.
After you had your assessment, did you ring the DWP and ask for a copy of the assessment report? It's called a PA4. Are you going to put in an Appeal? If you are and you haven't got a copy of the assessment report - you should ring the DWP and get hold of it.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems