Vowles Properties (Pty) Ltd and Macsteel Tube and Pipe, a division of Macsteel Service Centres SA (Pty) Ltd, concluded a lease agreement in July 2009 for the use of Vowles’ property. The lease terminated on 31 December 2012. Vowles alleged that Macsteel breached the lease by failing to return the premises in the same condition as at commencement and instituted action in the Kempton Park Regional Court in December 2015, claiming damages. Macsteel excepted to the particulars of claim, which were set aside by agreement in July 2016, with leave granted to Vowles to file amended particulars. After several failed or withdrawn attempts to amend, Vowles ultimately brought an amendment application in June 2018 under s 111 of the Magistrates’ Court Act and rule 55A(10), seeking to amend the quantification of damages and to correct the description of the defendant to align with the lease agreement. The regional court granted the amendment. Macsteel appealed to the High Court and thereafter to the Supreme Court of Appeal, contending that the amendment introduced a new cause of action and a new defendant after prescription, and that the order was final and appealable.