Provided also, that when any consideration money so to be paid as last herein-before mentioned shall not exceed the sum of twenty pounds for the redemption of all the rent-charge which shall be redeemable under this Act, and shall not be payable to the governors of Queen Anne’s Bounty as aforesaid, the same shall be paid, if the said commissioners shall so direct, to the person for the time being entitled to the rent-charge, for his own use and benefit, or in case of coverture, infancy, idiotcy, lunacy, or other incapacity of the person for the time being entitled, then such money shall be paid, for the use of the person so entitled, to the husband, guardian, committee, or trustee of such person; and in case any dispute shall arise as to the proper application, appropriation, or investment of any money according to the intention of this Act, it shall be lawful for the said commissioners to decide such question, and their decision shall be final and conclusive thereon.