Hyprop, owner of a shopping centre, concluded separate lease agreements with Masstores and Pick n Pay. Pick n Pay’s lease granted it contractual exclusivity to operate as a supermarket in the centre, while Masstores’ lease restricted it from trading as a general food supermarket. Despite this, Masstores began operating as a supermarket. Pick n Pay did not sue Hyprop for breach of contract but instead sought a final interdict directly against Masstores, alleging that Masstores unlawfully interfered with Pick n Pay’s contractual relations with Hyprop by breaching its own lease and undermining Pick n Pay’s exclusivity rights.