Competition and Consumer Act 2010 (Cth)
Withholding the supply of goods
(1) For the purposes of paragraph 96(3)(d) or (e), the supplier shall be deemed to withhold the supply of goods to another person if:
(a) the supplier refuses or fails to supply those goods to, or as requested by, the other person;
(b) the supplier refuses to supply those goods except on terms that are disadvantageous to the other person;
(c) in supplying goods to the other person, the supplier treats that person less favourably, whether in respect of time, method or place of delivery or otherwise, than the supplier treats other persons to whom the supplier supplies the same or similar goods; or
(d) the supplier causes or procures a person to withhold the supply of goods to the other person as mentioned in paragraph (a), (b) or (c) of this subsection.
(2) Paragraph 96(3)(d) does not apply in relation to the withholding by the supplier of the supply of goods to another person who, within the preceding year, has sold goods obtained, directly or indirectly, from the supplier at less than their cost to that other person:
(a) for the purpose of attracting to the establishment at which the goods were sold persons likely to purchase other goods; or
(b) otherwise for the purpose of promoting the business of that other person.
(3) For the purposes of subsection (2), there shall be disregarded:
(a) a genuine seasonal or clearance sale of goods that were not acquired for the purpose of being sold at that sale; or
(b) a sale of goods that took place with the consent of the supplier.
TPC v Orlane Australia Pty Limited  1 FCR 157; FCA 5; 51 ALR 767
Loss-leader defence; cost means 'landed' or 'delivered' cost [para 17]