(1) An Advocate and Solicitor may on any special occasion send greeting cards to-
(a) any person who is his or his firm's client; or
(b) any person with whom he has professional dealings.
(2) The greeting card referred to in subrule (1) may, apart from the message of the greeting, contain approved information.
(3) No Advocate and Solicitor shall send greetings to anyone for any occasion by publishing the greetings in any form in any newspaper, journal or other publication.