After you file

Whatever happened with your refund? I got a code when emiling saying one of my Kids name or social security was wrong.  Everything was right so I paper filled.  Just saw a code 9021 with $2000 less of a return.  Seems my daughter was not accepted for some reason though code 9021 seems to be a math issue.  No matter how many times or websites i run my numbers on i come up with the same, so not sure of the issue.  Has anyone ever appealed?