No complaint as to the reasonableness of any rates or charges of any heat, gas, electrical, water, or telecommunications utility shall be entertained by the commission except when made upon its own motion, unless the same is signed by the governing body of the county or city, if any, within which the alleged violation occurred, or by not less than ten percent of the consumers or purchasers of such heat, gas, electrical, water, or telecommunications service.
N.D.C.C. § 49-05-02