Jackie
The obvious thing is to send the DWP office dealing with your claim a copy of the missing documents as part of your MR.
However, I would not just do this, the assessment report will explain how the Decision was made and you should look at your PIP2, the missing documents and our PIP Claim guide to make sure that you fully addressed the issue raised.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems