Form field missing when submitted

I have created an application that uses a form to submit a request. The form contains 13 sections and each section has a set of fields that collect specific information. Each section is sent to a different contact. The contact then fulfills the request and responds to the submitter. I have one field in one section of the form that does not show up in the request to the contact. I have seached the community and have not found a similar problem.