appeal on MRc7

Hi, we just received our final review, but we like yo get one more point to have 80 points instead of 79. Our credit MRc7 is still pending because we could not find enough documentation to document it after the preliminary review. The questions are: 1. Can we install a new wood floor and document it in an appeal? If yes, 2. What happen whith the table of cost uploaded in other material credits? 3. How can I change the status to "open to update"? I click everywhere from credit page and nothing change. Thanks in advance