The respondents (plaintiffs) mandated the appellants (defendants), their attorneys, to exercise an option to purchase a farm from the late Mr Jan Harmse Steyn. On 26 September 2003, the plaintiffs consulted the second defendant who said he would write to the deceased's attorney, but told them no signature was necessary. The deceased passed away on 13 September 2003, having previously sold the property to another buyer on 8 July 2003. The option expired on 13 November 2003. The plaintiffs instituted action against the purchaser in October 2004, which was dismissed by Williams J in September 2009 on the basis that the option was not executed in compliance with s 2(1) of the Alienation of Land Act 68 of 1981. The plaintiffs then sued their former attorneys (defendants) for breach of mandate in September 2009. The defendants pleaded prescription. The plaintiffs argued they only became aware of the breach during cross-examination in November 2007 when non-compliance with the Alienation of Land Act was revealed, or when Williams J's judgment was handed down in September 2009.