PIP review/previous Atos medical report

Hi, I received my PIP review form yesterday, I just wanted to ask if they would have access to my previous Atos medical report? I forgot to put it in my review form which I posted out yesterday, it was the first time they had awarded me with no mandatory reconsiderations/tribunals so I thought it would be helpful to put that in as well. Would I be able to post it out separately or will it even really matter, thanks Layla