Sizakele Nzima v Sazini Phiri

The plaintiff and defendant were friends from the same rural area and members of the same stokvel. The defendant operated a restaurant and flea market stalls and routinely borrowed cash from the plaintiff in dribs and drabs to purchase stock from Tanzania, Mozambique and South Africa, buy food supplies, pay rentals and salaries. At some point the defendant borrowed a lump sum of USD 15,000 to pay legal fees after her husband's arrest. The defendant signed an acknowledgement of debt for USD 58,873.00 at the plaintiff's lawyers' offices in the presence of witnesses. The defendant admitted borrowing money but claimed she only borrowed USD 10,000 which ballooned due to illegal weekly interest of 25%. She alleged she signed the acknowledgement of debt under duress, claiming the plaintiff threatened her with witchcraft involving her daughter's death and her husband going insane, and that she was alone and vulnerable after her husband was ejected from the lawyers' offices. The defendant's husband testified he paid three instalments after negotiating the debt down from USD 20,000 but stopped when interest kept ballooning. He stated he objected to signing at the lawyers and was thrown out, and that the defendant denied signing anything when she emerged.

• Whether the acknowledgement of debt was valid and enforceable
• Whether the acknowledgement of debt was signed under duress
• Whether the court could inquire into the quantum of the underlying debt in light of a signed acknowledgement of debt
• What constitutes duress sufficient to vitiate a contract
• Whether a liquid document (acknowledgement of debt) is enforceable absent proof of duress

Judgment was granted in favour of the plaintiff. The court ordered: (a) Defendant to pay USD 58,873.00 or the equivalent in Zimbabwean dollars at the prevailing interbank rate on the day of payment; (b) Interest on the sum at the prescribed rate of 5% calculated from the date of issue of summons; (c) Costs of suit on an attorney and client scale.

An acknowledgement of debt signed by a party of full legal capacity in the presence of witnesses is enforceable as a liquid document unless the party challenging it proves duress on a balance of probabilities. Duress requires proof that: (1) the fear was reasonable; (2) it was caused by threat of considerable evil to the person or their family; (3) the threat was of imminent or inevitable evil; (4) the threat was unlawful and contra bonos mores; and (5) the moral pressure caused damage. Contracts are sacrosanct and courts will not rewrite them or excuse parties from consequences they freely and voluntarily accepted, even if onerous. Mere allegations of threats, without objective evidence of conduct consistent with duress, are insufficient to vitiate a contract. A married woman has full contractual capacity and does not require her husband's consent or authority to enter into binding contracts.

The court observed that the defendant's husband was "completely irrelevant in this matrix" and "had no business going to the lawyers to object to the signing of an acknowledgment of debt as he was not the debtor nor the debtor's lawyer." This reinforced that the husband "volunteered his involvement when defendant did not seek it." The court characterized the threats of sorcery and black magic as "just but a ruse if not a red herring," indicating judicial skepticism toward such allegations in commercial contexts. The court also noted approvingly the legal principle that "hallmarks of an adult of full legal capacity" include resistance to being physically removed from a situation where one is voluntarily engaging in legal acts.

This case reinforces fundamental principles of contract law in Zimbabwe, particularly the sanctity of contracts and acknowledgements of debt. It clarifies that: (1) courts will not rewrite contracts freely entered into even if onerous; (2) acknowledgements of debt are liquid documents enforceable ex facie unless duress is proven; (3) the threshold for proving duress is high and requires objective evidence beyond mere allegations; (4) married women have full contractual capacity without requiring spousal consent; (5) the quantum of underlying debt cannot be challenged once embodied in a signed acknowledgement of debt. The case also demonstrates the court's approach to allegations of traditional/supernatural threats (witchcraft) as insufficient to establish duress.