(1) Where a notification of change of address pursuant to regulation 19 is received on:
(a) the date on which interest on stock is due or during the 7 days immediately preceding that date, the notification is not effective until the day following the date on which the interest is due; or
(b) the maturity date or during the 7 days immediately preceding that date, the notification is of no affect.
(2) Where a direction to pay interest referred to in regulation 30(4) is received on the date on which interest is due or during the 7 days immediately preceding that date, the notification is not effective until the day following the date on which the interest is due.
(3) Where a direction to pay principal referred to in regulation 31(2) is received on the maturity date or during the 7 days immediately preceding that date, the notification is of no effect.