The purpose of Sections 83-5-29 through 83-5-51 is to regulate trade practices in the business of insurance in accordance with the intent of Congress as expressed in the Act of Congress of March 9, 1945 (Public Law 15, 79th Congress), by defining, or providing for the determination of, all such practices in this state which constitute unfair methods of competition or deceptive practices, and by prohibiting the trade practices so defined or determined.