6.—(1) A notice to or document for any party shall be deemed duly served if it is—
(a)delivered to him personally;
(b)properly addressed and sent to him by prepaid post at the address last notified by him for this purpose, or to his ordinary address;
(c)subject to paragraph (2), sent by e-mail; or
(d)served in any other manner a Commissioner may direct.
(2) A document may be served by e-mail on any party if the recipient has informed the person sending the e-mail in writing—
(a)that he is willing to accept service by e-mail;
(b)of the e-mail address to which the documents should be sent; and
(c)if the recipient wishes to so specify, the electronic format in which documents must be sent.
(3) A notice to or other document for a Commissioner shall be—
(a)delivered to the office in person;
(b)sent to the office by prepaid post;
(c)sent to the office by fax; or
(d)where the office has given written permission in advance, sent to the office by email.
(4) For the purposes of any time limit, a properly addressed notice or other document sent by prepaid post, fax or e-mail is effective from the date it is sent.