29. If a person takes any action in respect of, or in consequence of having received—
(a) a notice or request, made or apparently made under this Act; or
(b) a consent or authorisation, given or apparently given under this Act;
that is void or defective, the person is not liable in respect of the action by reason only that the notice, request, consent or authorisation was void or defective, if the person proves that he or she—
(c) took the action in good faith; and
(d) did not know, and had no reason to be aware, when taking the action, that the notice, request, consent or authorisation was void or defective (as the case may be).