Hi Stepehenson
Some claimants are finding that their reviews are not happening as quickly as they would have expected and the is because the DWP has a backlog.
When the time comes a form should be sent to you. Details can be found in the ESA/UC guide.
benefitsandwork.co.uk/guides-for-claimants/esa ESA and UC Claims for Physical, Mental Health and Learning Difficulties: a guide to the limited capability for work assessment. Click on the link inside the guideand you can see the form.
BIS