210.16.The Minister of Revenue may redetermine the amount of a grant
(1) within three years after the date of sending of the notice of determination provided for in section 210.15; or
(2) at any time, if the applicant
(a) misrepresented the facts through negligence or wilful omission, committed fraud in making the application or furnishing any other information for the payment of the grant provided for in this division, or
(b) filed a waiver with the Minister in prescribed form.