Any person aggrieved by an order of the office may file an appeal from such order with the director. Notice of appeal shall be filed within 15 days of the order from which the appeal is taken, and shall be in writing and signed by the appellant. Each appeal shall state:

(1) The reason for the appeal, including the reasons appellant believes the order to be unjust or unwise;

(2) The names and addresses of persons known to appellant who might be adversely affected by the outcome of the appeal;

(3) The nature of the relief sought, whether reversal, modification or some other relief;

(4) A demand for a hearing, or all appeal documents if no oral hearing is requested.