Basic features of the South African law of unjustified enrichment -- The general requirements for liability based on unjustified enrichment -- The enrichment arising from a transfer made to another or 'giving' : the conditiones -- Enrichment arising from a transfer that failed to fulfil an obligation (the condictio indebiti) -- Enrichment arising form a transfer that failed to achieve a future lawful purpose other than fulfilling an obligation (the condictio causa data causa non secuta) -- Enrichment arising from a transfer made for illegal or immoral purpose (the condictio ob turpem vel iniustam causam) -- Remaining cases of enrichment arising from a transfer (the conditio sine causa) -- Enrichment imposed on another : general features of the category of claim -- Enrichment imposed on another : unauthorised improvement of another's property -- Enrichment imposed on another : unauthorised fulfilment of another's obligation -- Enrichment by taking from another or infringement of another's rights : general features of the category of claim -- Enrichment by taking from another or infringement of another's rights : specific cases.