N.D. Cent. Code § 26.1-17-28
Each health service corporation, within a reasonable time after receiving a written request therefor, shall furnish to any subscriber with whom it has a contract and who is affected by a rate made by it, or to the authorized representative of the subscriber, all pertinent information as to the rate.
Each corporation must provide reasonable means whereby any person aggrieved by the application of its rating system, rating formula, or rate may be heard in person or through that person's authorized representative on that person's written request to review the manner in which the rating system, rating formula, or rate has been applied in connection with the contract issued to that person. If the corporation fails to grant or reject the request within thirty days after it is made, the applicant may proceed in the same manner as if the application has been rejected. Any party affected by the action of a corporation on such request may appeal, within thirty days after written notice of the action, to the commissioner who, after hearing held upon not less than ten days' written notice to the appellant and to the corporation, may affirm or reverse the action.
N.D.C.C. § 26.1-17-28