Hi Peter
Welcome to the forum, you might want to have a look at the following FAQ which explains where everything is
Welcome to Benefits and Work We have a guide on how to fill out the review forms. Although some people write nothing has changed - we advise that if you are able, you write something. (It doesn't have to be much). I would especially write something if you had to challenge the previous decision. The guide will give you information on what you might write and it indicates the case law that has changed a couple of the criteria since your wife last filled out a form.
www.benefitsandwork.co.uk/help-for-claimants/pip BIS
