(1) This section operates if:
(a) the group liability is * general interest charge for a day in relation to another liability (the primary liability ); and
(b) the Commissioner gives a particular contributing member written notice under subsection 721 - 15(5) of the group liability; and
(c) general interest charge arises for a subsequent day in relation to the primary liability; and
(d) the general interest charge for the subsequent day has not been paid or otherwise discharged in full by the time it became due and payable.
(2) The Commissioner is taken to have given the contributing member written notice under subsection 721 - 15(5) of the * general interest charge for the subsequent day. The notice is taken to have been given on that day.