The first to sixth respondents (the developers) marketed interests in a sectional title development (Lazy Lizard) through the sale of members’ interests in close corporations owning the units. The appellants, Pillay and Motlanthe, each signed standard-form agreements offering to purchase members’ interests in two such close corporations and paid substantial deposits into the developers’ attorneys’ trust account. Although the developers never signed the agreements, their conduct over an extended period—accepting deposits, issuing confirmations, requesting guarantees, allocating units and close corporations, and treating the appellants as purchasers—indicated acceptance. Later, the developers repudiated the transactions, asserting that no binding agreements existed because they had not signed the contracts.