For a kind or line of insurance as to which the Commissioner has issued an order in which the Commissioner finds that a reasonable degree of competition does not exist, the Commissioner may require the insurer at the time of filing a proposed rate increase with the Commissioner to notify each policyholder in writing that: the insurer has filed a proposed rate increase with the Commissioner; a hearing may be requested with respect to the filing; and an order, hearing, or refusal of a hearing by the Commissioner may be appealed under Subtitle 5 of this title.