Before an investment firm licensee enters into a transaction for a client, either directly or indirectly, with or through the agency of another person, under a soft dollar agreement which the investment firm licensee has, or knows that another member of its group has, with that other person, it must disclose to its client:
(a) the existence of the soft dollar agreement; and
(b) the investment firm licensee's or its group's policy relating to soft dollar agreements.