Any member of or subscriber to a rating organization may appeal to the commissioner from the decision of such rating organization in approving or rejecting any proposed change in or addition to the filings of such rating organization and the commissioner, after a hearing, shall issue an order approving the decision of such rating organization or directing it to give further consideration to such proposal, or, if such appeal is from the action or decision of the rating organization in rejecting a proposed addition to its filings, the commissioner may, in the event the commissioner finds such action or decision was unreasonable or unfair, issue an order directing the rating organization to make an addition to its filing, on behalf of its members and subscribers, in a manner consistent with the commissioner’s findings, within a reasonable time after the issuance of such order.