Bokoni Platinum Mines concluded agreements with subsistence farmers, including Abram Moropane, to compensate them for loss of mielie fields due to mining activities. Moropane was to receive R54 000 in three annual instalments, of which only the first was paid. Moropane sued for the balance. Bokoni denied the written agreement and raised alternative defences, including that Moropane did not farm mielies and was unjustly enriched. During protracted magistrates’ court proceedings, Bokoni sought to amend its plea and counterclaim to align with evidence admitting written agreements. The application to amend was dismissed by Magistrate Malebane. Bokoni later successfully applied for his recusal on grounds of bias, with an order that the trial start de novo. A subsequent, similar amendment application was dismissed by Acting Magistrate Moyane. On appeal, the High Court raised res judicata mero motu, holding that Malebane’s earlier refusal to amend survived his recusal and barred the later application. Bokoni appealed to the Supreme Court of Appeal.