Hello Dawnt: I noticed this is your first post here on PC. So... welcome to PsychCentral.

I'm sorry I cannot be of help with regard to your concern. I see you list yourself as being in England. So you probably need to hear from members who are in the U.K. (Hopefully you will.) Where I live, "proving" something such as permanent disability is typically something one has to rely on medical & legal professionals for. There's really little or nothing the patient can do, that I know of, other than to cooperate with the various procedures that are required in order for a determination to be reached.

I hope you find PC to be of benefit.