The Authority may refuse to investigate a complaint under this Part on the grounds that—
(a) the complaint is trivial, frivolous or without substance; or
(b) the complaint is, in the Authority's opinion, more appropriate to be dealt with by another person, body, court or tribunal; or
(c) the complainant has already made a complaint to another person, body, court or tribunal and the person, body, court or tribunal—
(i) has investigated, dealt with or is dealing with the complaint; or
(ii) has not yet had a reasonable opportunity to investigate or deal with the complaint.
Division 1—Approved transport services