393.280. If it be alleged and established in an actionbrought in any court for the collection of any charge for gas,electricity, water or sewer service that a price has beendemanded in excess of that fixed by the commission or by statute,in the municipality wherein the action arose, no recovery shallbe had therein, but the fact that such excessive charges havebeen made shall be a complete defense to such action.
(RSMo 1939 § 5662, A.L. 1967 p. 578)Prior revisions: 1929 § 5206; 1919 § 10494