tracyjeanne
I'm sorry but I still don't see any opportunity for you to backdate this award!
Your only options are a Judicial Review which will require expensive legal council and you would be liable for the DWP expenses if you fail.
Or an Any Time Revision, however, this requires the DWP to accept that they made an error when they made the original Decision which seems remote given that you had an MR and an appeal.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
