In any case arising under this chapter, no liability shall be imposed upon a supplier who shows by a preponderance of the evidence that (i) the act or practice alleged to be in violation of § 59.1-200 or 59.1-200.1 was an act or practice of the manufacturer or distributor to the supplier over which the supplier had no control or (ii) the alleged violation resulted from a bona fide error notwithstanding the maintenance of procedures reasonably adopted to avoid a violation; however, nothing in this section shall prevent the court from ordering restitution and payment of reasonable attorney’s fees and court costs pursuant to § 59.1-204 B to individuals aggrieved as a result of an unintentional violation of this chapter.