Any sponsor aggrieved by the action of the Director in refusing to issue any permit or revoking a permit issued under this chapter shall have the right to appeal the Director's action to the Aberdeen City Council, or such other hearing body or officer as may be designated by the City Council, by filing a notice of appeal with the Finance Director within ten (10) calendar days of issuance of notice of the denial or revocation. Any appeal shall be accompanied by a statement indicating the grounds for such appeal. The hearing body or officer shall set a date for hearing such appeal, to take place within twenty (20) calendar days of the date of receipt of the notice of appeal, unless the appellant agrees to a longer time frame. If the twentieth day falls on a weekend or holiday, the next business day would be the final day for holding a hearing. At such hearing the appellant and other interested persons may appear and be heard, subject to rules adopted by the city council or the hearing body. The hearing body or officer shall render its decision on the appeal within ten (10) business days following the close of the appeal hearing. The decision of the hearing body or officer is final.