Dear
As you appealed against the decision of the disciplinary hearing that you be (dismissed/subject to disciplinary action), I would like to inform you that the appeal hearing was held on (date and time) at (place) with (names of appeal panel).
The purpose of my writing to you is to confirm the decision taken by (name of head of appeal panel) who conducted the appeal hearing, namely that the decision to (describe original hearing decision) stands.
You may be informed that the decision of the panel is final and binding, now the you have also exercised your right of appeal under the Company Disciplinary Procedure.
Sincerely