Discharging zakaat to people who one thought were recipients of zakaat

My aunt was widowed when my cousins were very young. We were told that they can accept zakaat. Years later I realised that my aunt did not have cash but did have all her gold jewellery. The house my uncle had was sold and the money invested to pay their rent. My aunty worked and earned and my grandparents and family helped where they could.

Is our zakaat that we had given discharged, as it seems that the daughters did have gold, saved money and are entitled to about R67 000 each. As family we were told that they had nothing.

If the zakaat is not discharged how would one go about discharging it?