Notice of the rejection of an application for a taxicab license or taxicab driver's license, notice of the suspension or revocation of a taxicab license or taxicab driver's license and notice of a hearing in respect to any of the foregoing shall be given by the Village Clerk, by registered mail, directed to the respective applicant, owner or taxicab driver at the address stated in such application or appearing in such license. At the same time, a copy of the notice of rejection of an application for a taxicab driver's license shall be sent by registered mail to the last known taxicab owner employing the applicant. Notice of a hearing shall be given at least three days prior to the date thereof, exclusive of the date of mailing.