"debt"

means any debt arising from any cause of action—

(a)which arises from delictual, contractual or any other liability, including a cause of action which relates to or arises from any—
(i)act performed under or in terms of any law; or
(ii)omission to do anything which should have been done under or in terms of any law; and
(b)for which an organ of state is liable for payment of damages,

whether such debt became due before or after the fixed date;