Lisa
A quick read of your previous posts, suggests that you are now waiting for a Tribunal date.
There is no reason why you cannot ask your CPN to write a report or letter in support of your case, although it will depend on their employers as to whether they are allowed to.
On a general note, once you are awaiting a Reconsideration or an Appeal, the onus is on the claimant to collect additional evidence.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems