It is unlawful for an employment agency to discriminate against a person on the ground of the person's sex, sexual orientation, gender identity, intersex status, marital or relationship status, pregnancy or potential pregnancy, breastfeeding or family responsibilities:
(a) by refusing to provide the person with any of its services;
(b) in the terms or conditions on which it offers to provide the person with any of its services; or
(c) in the manner in which it provides the person with any of its services.