On 12 April 2012, the respondent (Sporrow Haulier) sought fibre internet services for two premises from the appellant (Telecontract), an internet service provider. The parties entered into an agreement that was both verbal and written, though the written contract was not signed by both parties. The respondent believed it was contracting for internet service with a speed of 5 megabytes per second, while the appellant maintained it was providing 5 megabits per second. The respondent paid installation costs and service fees. Internet service was installed at the first premises (No. 34 Martin Drive) on 23 April 2012, and trenches were being dug at the second premises (No. 19 Manyonga Close). When the service speed of 5 megabytes per second was not achieved at the first premises, the respondent complained. Email exchanges revealed the confusion: the respondent's representative used "MB" (megabytes) in communications, which the appellant's representative noted but assumed was a typographical error, believing it meant "Mb" (megabits). The parties failed to agree, and the respondent cancelled the agreement and sued to recover part of the deposit paid for both installations.
The appeal was dismissed with costs. The Supreme Court upheld the decisions of both the High Court and Magistrates' Court, which had found in favour of the respondent and granted its claim for recovery of US$4,987.00 in deposits paid.
For a valid contract to exist, there must be consensus ad idem - a true meeting of the minds of the parties. Where parties are at cross-purposes regarding essential terms of the agreement, no valid contract comes into existence. The test for consensus ad idem involves both subjective and objective elements: (1) subjectively, the court examines what each party actually intended or understood they were agreeing to; and (2) objectively, the court examines whether the parties' conduct would lead a reasonable person to believe they had agreed to the same terms. Where one party is aware that the other party may be operating under a different understanding of essential contractual terms but fails to clarify this misunderstanding, and the parties proceed on the basis of fundamentally different understandings, no contract is formed. The absence of consensus ad idem renders a purported contract void ab initio.
The Court noted that the appellant's argument of unilateral mistake was flawed based on the evidence presented. The evidence showed mutual confusion rather than a mistake by only one party. The Court observed that the appellant's representative admitted in testimony that she "did not know what they [the respondent] were thinking" and that she had "assumed" the respondent meant megabits when they wrote megabytes. The Court also commented that the appellant failed to take reasonable steps to clarify the obvious discrepancy in terminology, which would have been the prudent course of action in commercial dealings involving technical specifications.
This case is significant in Zimbabwean contract law as it reinforces the fundamental principle that consensus ad idem (meeting of the minds) is essential for the formation of a valid contract. The judgment demonstrates that courts will examine both the subjective intentions of parties and their objective conduct to determine whether a contract came into existence. It serves as an important precedent regarding the consequences of failing to clarify ambiguous or technical terminology in contract negotiations, particularly in commercial transactions involving technical specifications. The case also illustrates that where one party is aware that the other party may be under a misapprehension about essential terms but fails to clarify, this can result in no valid contract being formed. The decision emphasizes the practical importance of ensuring clear communication and mutual understanding of technical terms in commercial agreements, and that silence or assumptions about errors in terminology can be fatal to the existence of a binding contract.