Hi Jshaun1968
The proposals for PIP have not been finalised so I cannot predict what will happen to a 10 year review.
Yes the Appointee applies to all DWP Benefits but I would phone up the DWP and check that it has been correctly registered on the DWP IT system which is called CIS Searchlight.
David
Nothing on this board constitutes legal advice - always consult a professional about specific problems