The court also rejected former CEO Alan Knott-Craig's claim that he had come up with the idea. Knott-Craig had published the claim in his autobiography, and later repeated in court, that he had the idea while watching two security guards trying to communicate on phones without airtime. Yet the High Court found against Makate's claim for compensation, holding Vodacom's argument that Geissler had not had the authority to promise Makate such compensation and that the debt would have expired (in legal terms, been prescribed) within three years.