18. For the purposes of section 25 of the Act, costs may only be awarded in any of the following circumstances:
(a)
where the whole or any part of a claim is struck out or dismissed on the ground that the whole or part of the claim is frivolous or vexatious or is otherwise an abuse of the process of the Court;
(b)
where the tribunal or Registrar is of the view that it is just and equitable to do so.