Mega Market (Private) Limited v Nedbank Zimbabwe Limited

Mega Market (Private) Limited operated a retail business in Mutare, Zimbabwe, importing groceries from abroad. In December 2018, the applicant participated in Nedbank Zimbabwe Limited's bond note deposit promotion, which offered foreign currency allocation equivalent to 50% of bond notes deposited. The applicant deposited bond notes and made several applications for foreign currency, which the respondent approved and processed at an exchange rate of 1:1 (bond note to USD). From August 2018 to early 2019, numerous offshore payments were made by the respondent on behalf of the applicant without any queries. In February 2019, a new monetary policy was introduced under SI 33/2019 distinguishing between US dollars and RTGS. On 21 March 2019, the respondent unilaterally debited and credited the applicant's bank accounts, retrospectively applying the new exchange rate, resulting in a debit balance of RTGS$1,188,191.38 after debiting RTGS$2,174,871.54 from the applicant's account without prior notice. The applicant discovered this when it obtained bank statements. The applicant's lawyers protested on 21 March 2019, and the respondent justified its actions on 29 March 2019. The applicant filed an urgent chamber application on 2 April 2019.

• Whether the application was properly before the court despite non-compliance with prescribed forms under Rule 241(1)
• Whether the matter was urgent and properly brought on an urgent basis
• Whether a valid contract existed between the parties regarding the bond note-forex promotion
• Whether the respondent bank was entitled to retrospectively debit the applicant's accounts by applying the new exchange rate introduced by SI 33/2019
• Whether the doctrine of quasi-mutual assent applied to establish a contract between the parties
• Whether the bank's unilateral action without mandate from the account holder was lawful
• Whether the applicant established the requirements for an interdict

A provisional order was granted: (1) Respondent must reverse all unlawful banking transactions effected on 21 March 2019, including: (a) reversing the debit of RTGS$2,174,871.54 and crediting the same to applicant's RTGS account to restore the status quo ante; (b) reversing the credit of RTGS$721,589.76 to restore the status quo ante; (c) reversing the debit of USD$2,234.41 from applicant's FCA account and reversing the corresponding credit to applicant's RTGS account; (2) Respondent must cease unlawful debits and/or credits of applicant's bank accounts pending finalization of the urgent chamber application.

The binding legal principles established are: (1) A bank cannot unilaterally debit a customer's account without proper mandate or instruction from the account holder, except in limited circumstances such as correcting patent errors or exercising a right of set-off; (2) The doctrine of quasi-mutual assent applies where a party conducts itself in such a manner that a reasonable person would believe it was assenting to certain terms, and the other party relies on that belief - unexpressed mental reservations are irrelevant; (3) A statutory instrument cannot be applied retrospectively to affect vested rights unless the legislation expressly provides for retrospective application; (4) Each banking transaction involving approval and debiting constitutes a complete contract that cannot be unilaterally revised after completion based on subsequent changes in exchange rates or monetary policy; (5) Commercial urgency can justify hearing a matter on an urgent basis where there is a need to protect commercial interests, not only where there is threat to life or liberty; (6) Non-compliance with prescribed court forms can be condoned under Rule 4C where the applicant seeks condonation, no prejudice results to the other party, and the matter is of public interest.

Muzenda J made several notable obiter observations: (1) The court commented on the difficult economic environment in Zimbabwe, noting businesses had to navigate three currency types in six months, making it difficult to hedge against rapid changes; (2) The judge observed that the format used by the applicant in its application "seems so popular among legal practitioners" and wondered where such format originates; (3) The court noted that "quite often in recent history we are subjected to endless points in limine centred on urgency which should not be made at all" and that courts appreciate litigants have other matters to attend to beyond filing court processes; (4) The judge remarked on the festive period context and how people strive to raise money to celebrate Christmas, providing cultural and economic context; (5) The court commented that it would not make business sense or equity to allow terms from a 2015 account opening application to apply to a completely different 2018 promotional offering; (6) The judge emphasized that matters of great public interest cannot be disposed of based on technicalities; (7) The court observed that accessing hard currency and paying foreign suppliers had "not been a stroll in the park" since 2008 and had been "incredibly difficult" for businesses.

This case is significant in Zimbabwean banking and commercial law for several reasons: (1) it addresses the rights and duties of banks in relation to unilateral account adjustments without customer mandate; (2) it clarifies that banking practices require adherence to customer mandates and proper notice before debiting accounts; (3) it establishes that statutory instruments introducing new exchange rates cannot be applied retrospectively unless expressly stated; (4) it demonstrates the application of the doctrine of quasi-mutual assent in determining whether a contract exists based on conduct rather than written agreement; (5) it provides guidance on commercial urgency and the court's willingness to hear matters protecting commercial interests on an urgent basis; (6) it reflects the court's approach during Zimbabwe's volatile currency transition period and multiple exchange rate regimes; (7) it emphasizes that technical non-compliance with court rules can be condoned in matters of public interest where no prejudice results; (8) it establishes that each banking transaction constitutes a complete contract that cannot be unilaterally revised after completion.