Q: A lady who has her authentic Sayyid tree (descendants of the Prophet sallallahu alaihi wa sallam), had accepted Zakaat and long used it already. At the time she was not aware that she could not accept Zakaat. How does she make amends?
A: It is safest that she give out whatever she received as Zakaat in charity to the poor and needy Zakaat recipients.
And Allah Ta'ala Knows Best