Bell PTA (Private) Limited supplied technical services for machinery at Macatoo Mining's premises in Hwange since 2011 on an ad hoc basis. In September 2012, Macatoo complained about poor service quality, stating Bell's technicians were overstretched and prioritizing larger clients. Following discussions, parties agreed to have a full-time technician stationed at Macatoo. On 7 January 2013, Macatoo issued a purchase order requesting supply of a full-time technician for 200 hours/month, asking Bell to confirm price and start date. Bell sent a draft memorandum of agreement proposing a one-year contract at $10,300 per month, but this was never signed by either party. A technician was provided on a full-time basis (evidence disputed whether this started in January or February 2013). Macatoo paid for February 2013 services and on 17 May 2013 paid $27,396.39 for what it believed covered all outstanding amounts based on invoices received for actual hours worked. Bell then issued invoices claiming $41,400 for March, April and May 2013 based on 200 hours per month at $60/hour, stating previous invoices contained errors. Macatoo disputed this, arguing it had settled all amounts owed based on actual hours worked on a job-by-job basis.
1. Defendant to pay US$41,400 being amount due for supply of full-time technician for 200 hours per month for March, April and May 2013. 2. Interest a tempore morae from 4 February 2014 (date of demand). 3. Costs of suit on ordinary scale (higher scale costs not justified given lackadaisical approach to invoicing).
A binding contract can be established through the conduct of parties and surrounding circumstances even in the absence of a signed written agreement. Contract formation is not solely dependent on a clear offer and acceptance; what is required is that there must be agreement between the parties expressed in an "outwardly discernible manner". Where parties act consistently with contractual obligations—one party providing services and the other accepting and utilizing those services—a binding contract exists based on the objective manifestation of agreement. The court will consider the matrix of facts surrounding negotiations and performance, including prior dealings, communications, and subsequent conduct (such as termination of arrangements), to determine whether a contract was formed. Where a party requests specific services (full-time technician for 200 hours/month) and those services are provided and accepted, the requesting party cannot later deny contractual obligation merely because formal documentation was not executed.
The court observed that Macatoo's request for a reduced rate through a long-term contract was likely motivated by wanting a lower price than the standard $60/hour rate given the increased hours. When Macatoo chose not to commit to the one-year contract, it remained liable at the standard applicable rate. The court also commented that the lackadaisical approach to invoicing by Bell contributed to the dispute, which justified declining to award costs on a higher scale despite Bell's success. The court noted that a purchase order, when accepted by a seller, becomes a contract binding on both parties, though in this case the contract was not solely dependent on the purchase order but arose from the totality of circumstances.
This case demonstrates the Zimbabwean High Court's application of the contextual approach to contract formation, emphasizing that binding agreements can arise from parties' conduct and surrounding circumstances even without formal written contracts or clear offer-and-acceptance sequences. The case illustrates that where parties act consistently with contractual obligations (providing and receiving services), courts will enforce those obligations based on objectively discernible agreement rather than subjective intentions or incomplete formalities. It also addresses the treatment of purchase orders in commercial relationships and the evidential value of subsequent conduct (such as termination letters) in proving the existence of contractual relationships.