(a) No licensee or other person, firm, voluntary association, joint-stock company, incorporated society, or corporation shall advertise, print, display, publish, distribute, or broadcast, or cause or permit to be advertised, printed, displayed, published, distributed, or broadcast, in any manner whatsoever, any statement or representation with regard to the rates, terms, or conditions for the lending of money, credit, goods, or things in action in the amount or of the value of $1,000 or less, which is false, misleading, or deceptive, or, in the case of a licensee, which refers to the supervision of such business by the District of Columbia, or any department or official thereof. The Mayor may order any licensee to desist from any conduct which he shall find to be a violation of the foregoing provisions.
(b) The Mayor may require that rates of charge, if stated by a licensee, be stated fully and clearly in such manner as he may deem necessary to prevent misunderstanding thereof by prospective borrowers.