The plaintiff claimed damages of ZAR 2,620,000 for alleged interference with a lease agreement, plus delivery of tools or payment of ZAR 5,945.98. The plaintiff had leased a bus to Norman Gasa at ZAR 20,000 per return trip. On 22 May 2014, the bus was driven to the defendant's premises by Sydney Makanda and Tafadzwa Jiri (plaintiff's employee) for parking. When they tried to collect the bus the next day, the defendant refused to release it. The defendant claimed the bus was delivered to him as pledged property by Norman Gasa to secure a debt Gasa owed him. The plaintiff alleged the defendant unlawfully took possession, depriving them of rental income. The plaintiff also claimed certain tools (bottle jack, wheel spanners) were missing from the bus when it was eventually returned in June 2015.
The plaintiff's claim was dismissed with costs.
To succeed in a claim for wrongful interference with a contractual relationship, the plaintiff must prove: (1) the existence of a valid contract; (2) wrongful conduct by the defendant that interfered with that contract; and (3) quantifiable loss flowing from that interference. Where a defendant raises a defense that property was received as pledged security for a debt, and the plaintiff fails to call the person who allegedly pledged the property to rebut this defense, the plaintiff fails to establish wrongfulness. Additionally, claims for damages must be supported by proper documentary evidence proving the quantum of loss; mere assertions and calculations without supporting documentation are insufficient.
The court observed that even if Norman Gasa had no right to pledge the bus because he was not the owner, this would be irrelevant to the plaintiff's claim since the claim was not based on ownership rights but on interference with the lease agreement. The court also noted that the plaintiff's operations manager indicated he would have brought supporting documents if he knew they were required, suggesting a lack of preparation or understanding of the evidentiary requirements for proving quantum in civil claims. The court further observed inconsistencies in the plaintiff's evidence regarding who Sydney Makanda was employed by, which affected credibility. The fact that the bus was later attached and removed by the Sheriff in execution of a judgment against Norman Gasa by a company belonging to the defendant's family was mentioned but not developed as it did not affect the outcome.
This case clarifies the requirements for establishing the delict of wrongful interference with contractual relations in Zimbabwean law (which applies similar principles to South African law). It emphasizes that: (1) wrongfulness must be proven, not merely assumed; (2) a party claiming such interference must prove both the wrongful conduct and the quantum of loss suffered with proper documentary evidence; (3) the burden of proof lies on the plaintiff to rebut defenses raised, including calling crucial witnesses; and (4) failure to call a key witness (Norman Gasa) whose testimony is central to the dispute can be fatal to a claim. The case also illustrates that pledging property as security, even by a non-owner, may not constitute wrongful interference if done with the knowledge and consent of the person in possession.