Investec Bank Limited (appellant) lent money to Erf 436 Elandspoort (Pty) Ltd (first respondent) as principal debtor, with five other parties as sureties. As security, the first respondent registered a notarial covering mortgage bond over a notarial lease agreement it had concluded with SARCC. In January 2002, SARCC cancelled the lease agreement, confirmed by court order in August 2002. On 10 September 2002, the appellant demanded payment of the outstanding balance of R5,633,177.42, giving seven days' notice. On 18 January 2011 (after approximately 8 years), the appellant instituted action claiming R3,979,184.50. The respondents raised a special plea of prescription, arguing the claim had prescribed by 18 September 2002. The appellant argued the debt was secured by mortgage bond subject to 30-year prescription under s 11(a)(i) of the Prescription Act 68 of 1969, or alternatively that prescription was interrupted between 7 May 2003 and 21 May 2007.