11A. The relinquishment of the licence by the licensee by notice in writing served on the Director and signed by or on behalf of the licensee, which:—    ( a ) identifies the licence and the licensee;    ( b ) states that he thereby relinquishes the licence;    ( c ) states that he no longer requires the licence on account of his having ceased to engage in the activities for which that licence was issued, or his having become covered by another licence, as the case may be; and    ( d ) is accompanied by the document constituting the licence or, where he is not in possession thereof, indicates the reasons why he is not in possession of it.  ,The licensee,