Government amendment No. 23: In page 12, to delete lines 2 to 6 and substitute the following:“(2) The amount of a charge under subsection (1) shall be calculated by Irish Water in accordance with the approved water charges plan or an approved agreement, as may be appropriate. (3) A charge under this section shall be payable on demand by the customer concerned in such manner and in respect of such period or periods as Irish Water shall determine in accordance with the approved water charges plan or an approved agreement, as may be appropriate.".