Hi Lmo
You have got it the wrong way round, if you contact DWP to report a change of Circumstances then you will be sent a new claims form.
if you are sent a review form and your condition has deteriorated you need to explain how your condition has changed. I would advise you to read our latest guides for both PIP and ESA. Always treat a review form as if it was a new claims form and send in supporting documents even if you sent them in previously if they are still relevant.
You will not be penalised for not reporting a change if your condition has got worse, you may be penalised if you fail to report that your condition has improved.
We have heard on the forum where members award has been extended only to receive a review form a few weeks/months later.
Gary
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
