18Giving of noticeS
(1)Any notice to be given to any person under any provision of this Act must be given—
(a)in writing, and
(b)by one of the means specified in subsection (2).
(2)Those means are—
(a)delivering the notice to the person,
(b)sending it by registered post or recorded delivery service addressed to the person at—
(i)in the case of an individual, the person's usual or last known address or the person's place of business or work,
(ii)in any other case, the person's registered or principal office,
(c)sending it to the person by some other means (including electronic means) which the person giving the notice considers likely to cause it to be delivered on the same or next day.
(3)A notice which is given by electronic means is to be treated as being in writing if it is received in a form which is legible and capable of being used for subsequent reference.
(4)A notice given by a means specified in subsection (2)(c) is, unless the contrary is proved, to be presumed to be delivered on the next working day following the day on which it is sent.
(5)In subsection (4), “working day” means any day other than a Saturday, a Sunday or a day which, under the Banking and Financial Dealings Act 1971 (c. 80), is a bank holiday in Scotland.