"(7) Without prejudice to the generality of subsection (6), where a licensee (in this subsection referred to as "the relevant licensee") is conducting an auction in his or her capacity as a principal officer or employee of a licensee who is a property services employer, the relevant licensee shall also conspicuously display the licence, or a duplicate of the licence, held by him or her which entitles him or her to conduct the auction in that capacity.".