Hi Meconopsis
Inside the Guide to PIP Claims and Reviews, there is advice about preparing for a telephone assessment. It walks you through how to prepare, tricks to look out for from the assessors, among other things. I would advise you to make sure that your assessment is recorded. Even if you ask for it to be recorded, if you are able to do a recording yourself, then you would be advised to do so. You don't have to ask permission to do that.
As you are worried about your memory, make a bullet-point list of anything you really want the assessor to know so you can refer to it. You should always be asked if there is anything you want to say before the end, which is your chance to mention anything you have forgotten.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
