Accepted: I would look at the report and view the (if there is) evidence. I would talk to the staff member that got reported.
And if the application is accepted i would write:
Hello Player I have looked over this report and come to a decision that this report has been accepted.If the staff abuses their power again make sure to report it with evidence and it will be handled.
And if the application got denied i would write:
Hello player. I'm sorry to tell you that I will not be Accepting this demote request at this time. Because you were breaking the rules. He/She warned you with a valid reason. Staff members will NOT be told or demoted. Make an appeal next time before trying to demote, if you don't have proof.