On (date) I was informed that
(name of employer) had decided to (include information about decision and/or action by the
employer) based on my grievance of (date or period of incident giving rise to grievance)
which I raised on (date of first grievance letter) to (person letter sent to).
I would like to appeal against
this decision, taking into consideration the following information (include details
of your reasons, justification, etc.)
Kindly reply within (---) days
from the date of this letter.