(1) A supplier may request a new customer to provide an advance deposit against electricity bills starting from the date of first supply.

(2) The amount of the deposit will be calculated using the estimated monthly consumption of electricity as agreed between the customer and the supplier.

(3) The supplier may in addition to the advance deposit, request a bank guarantee in respect of industrial or commercial customers.

(4) Where an industrial or commercial customer consistently pays its bills as required over a period of twelve months, any bank guarantee provided shall cease to apply at the expiration of the twelve month.