Paper based assessment - no assessment report

I have just received my award letter after my PIP renewal. This was a paper-based assessment. I called to ask for a copy of my assessment report and was told there was no assessment report written because no health care professional assessed me this time.
Is there any other documentation I need to ask for that would explain why they have given me the points they have for the duration they have? They have kept all the points the same as previous award (enhanced for both), despite extensive evidence that would have warranted points in additional descriptors, and awarded for 3 years.