Josie
Do you actually mean an appeal, carried out by the Tribunal Service or a Mandatory Reconsideration carried out by the DWP?
If she has had and appeal then the Decision should have been given on the day or in writing a couple of days later.
If it is an MT then I would have expected them to have heard by now, by letter, so they should chase the DWP for an update.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems