The appellants stood surety for the obligations of L S Molope Holdings (Pty) Ltd, which had borrowed from three banks (Nedcor Bank Ltd, Mercantile Bank Ltd, and The Business Bank Ltd). One appellant, Dunbush Investments (Pty) Ltd, was also a debtor of Mercantile Bank and other appellants stood surety for its liabilities. As security for the loans, a large number of shares in Molope Group Ltd were pledged to the banks. When the principal debtors defaulted, the banks called up the loans and, acting in terms of the pledges, took over the pledged shares and credited the principal debtors with their value. The banks subsequently ceded their rights against the sureties to Duburoro Investments (Pty) Ltd, which instituted applications against the sureties. The sureties claimed they had been released from their obligations because the banks acted to their prejudice in taking over the shares, and alternatively that the amounts credited were insufficient.