Hi. I’ve been involved with PIP since it’s’ introduction in 2013 via consultation groups as I have a background in benefits, and I’ve volunteered my time, on and off, with a disability support group helping with applications more or less ever since.
The DWP routinely advise claimants not to send in medical evidence that they have used for a previous claim, only new medical, or other evidence that you have not used before. If you’re renewing your claim I can understand your worry that they may not link the evidence you have already provided, but they actually do, and they will also have any previous PIP assessment paperwork if you had a face to face assessment for your original claim.
If your condition has changed significantly it’s a good idea to obtain up to date medical evidence to support anything you tell them has changed when completing the review form - this can be a letter from your GP or copies of hospital letters to your GP, but you may have to pay for these. If nothing has changed DWP will refer to your original claim and either decide to renew the same level of award, or they may want to see you face to face to assess for themselves.
When you fill in the review form it’s a good idea to have a copy of your original PIP application in front of you if you have kept a copy - just to refresh your memory as to how you phrased things so you avoid contradicting yourself. Go through the form and if nothing has changed just write ‘no change since last time’. If something has changed, make sure you tell them what has changed, what aspect of your disability is responsible for that change and why. And as with the original application, give as much detail as you can.
Anyone who knows you and knows how your disability affects you can write a letter of support so if you have a good friend who’s familiar with your condition, then that’s a great idea. Also if you have carers, a copy of your care plan will also help. ESA has no bearing on PIP, so it’s up to you whether you mention being in the support group - it won’t make any difference to the PIP decision though, as the assessment criteria are different.
If you’re having any specific difficulties filling in the form or would like personalised advice please feel free to private message me and I’ll be happy to help if I can. Good luck.