In 2009, Masiphuze Trading (Pty) Ltd (first respondent) leased premises at King Shaka International Airport from ACSA (appellant) to operate a Wimpy franchise. The lease term was 1 May 2010 to 30 April 2015. Three shareholders of Masiphuze - Messrs Goldreich, Nemukula (third respondent), and O'Driscoll - signed a deed of suretyship (Annexure 5 to the lease) binding themselves as sureties and co-principal debtors for Masiphuze's obligations under the lease. Mr Nemukula was a non-executive director and investor who was not involved in operations, which were managed by Goldreich and O'Driscoll. He resigned as director in March 2014 but remained a shareholder. When Masiphuze fell into rental arrears in 2014, ACSA terminated the lease and sued for arrear rentals, damages for holding over, and ejectment. Masiphuze entered business rescue. The trial proceeded only against Mr Nemukula, who defended on the basis that: (1) the deed of suretyship did not comply with s 6 of the General Law Amendment Act 50 of 1956 because the names of sureties and principal debtor were not inserted in manuscript at the designated places in the document; and (2) he signed under justus error, not knowing he was signing a suretyship as his co-shareholders did not inform him of this fact. The High Court (Koen J) accepted his evidence and dismissed ACSA's claim.