(a) A commission merchant may not charge for mending or patching, roping bales, cooperage or repairing bales, labor, hauling, cartage, storage, or marking or weighing unless the work is actually done.
(b) A charge specifically describing work performed must be made on a bill regardless of any contrary usage or custom to make the charge by rate or average.

(c) A person who violates this section is subject to a penalty of not less than $100 or more than $500. The owner or consignor may recover the penalty by filing suit.