R
To be clear is this a request for an MR or an appeal?
If the latter, then there is a form you should use in preference to your writing a letter, the ESA Appeal guide has links to this form (SSCS1).
You can only score once for each of the ESA activities, the one with the highest score that you meet, the total is then taken across all of the activities.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
