(1) The Board shall institute a hearing by sending a notice of the hearing to the complainant and the supplier who is the subject-matter of the complaint.
(2) The notice of hearing must —
(a) specify the complaint and purpose of the hearing;
(b) specify the place and time of the hearing; and
(c) be in such form as may be specified by Regulations made by the Board.
(3) The complainant and the supplier concerned shall attend the hearing.