If any consumer
neglects to pay to a supply authority any rent or the price of or any charge
in respect of any service apparatus or electric fittings due and payable to
the supply authority for the space of 14 days next after demand in writing for
payment of the amount due shall have been served on the consumer, the supply
authority may cut off the supply of electricity, and, until payment of the
amount demanded together with any expenses incurred in connection with the
collection or recovery of such amount may discontinue the supply of
electricity to the consumer.