Lump sum payment

Notwithstanding anything contained in the foregoing provisions of this Act, on application being made to that effect by an operator, a Regional Transport Officer may accept a lump sum in lieu of the amount of toll that may be payable in respect of a transport vehicle for a period of one month or a number of consecutive months, to be paid in advance at such rate as may be prescribed: Provided that any change in the rate of toll which may come into force after the date of such lump sum payment in advance shall have the effect of making a proportionate change in the lump sum amount paid in relation to the part of the period during which such changed rate remains in force.