(6)(a)The trustees of a recognised provident fund, or any person authorised by the regulations of the fund to make payment of the accumulated balances due to employees shall, in cases where paragraph 9 of Part A of Schedule XI applies, at the time an accumulated balance due to an employee is paid, make therefrom the deduction provided in paragraph 10 of Part A of Schedule XI;(b)where any contribution made by an employer, including interest on such contributions, if any, in an approved superannuation fund is paid to the employee, tax on the amount so paid shall be deducted by the trustees of the fund to the extent provided in paragraph 7 of Part B of Schedule XI.