An appeal to the Commissioner under sub-section (9) of section 54 of the Act shall be made in writing and addressed to him at 17, North Audley Street, London, W.1, within twenty-eight days from the date of the receipt of the policy, endorsed pursuant to Regulation 3, by the owner thereof, or from the date of the serving of a notice pursuant to the said Regulation, or pursuant to Regulation 4, notifying the applicant or the owner of the policy, as the case may be, of the decision or proposal of the company or society against which the appeal is made.