43.A recoverable amount shall bear interest at the rate fixed by a regulation made under the first paragraph of section 28 of the Tax Administration Act (chapter A-6.002), from the 31st day following the date of the demand notice sent in accordance with section 73.3 of the Act respecting legal aid and the provision of certain other legal services (chapter A-14) or, if the repayment obligation is reviewed, from the 31st day following the date of the review committee’s decision confirming in whole or in part the director general’s decision on the repayment.