PIP Denied

I was denied pip, 0 points across the board. Due to lack of evidence from my GP it seems, apparently it was left blank….

So I called PIP asking for a MR, and they said a case manager would look at it again and make a decision.

Can someone tell me, I have some evidence I have been able to get my hands on, from therapist, NHS app…. How do I go about sending this in?

Obviously it probably would have helped in the first place and no doubt will be rejected again without any evidence.

Any help would be appreciated:)