It is unlawful for a person to publish or display, or cause or permit to be published or displayed, an advertisement or notice that indicates, or could reasonably be understood as indicating, an intention to do an act that is unlawful by reason of a provision of this Part or an act that would, but for subsection 12(3) or 15(5), be unlawful by reason of section 12 or 15, as the case may be.