18.—(1) Any document or thing required or authorised by these Regulations to be sent or delivered to, or served on any person shall be duly sent, delivered or served on that person–
(a)if it is sent by post in a pre-stamped envelope addressed to him at his address as set out in the form on which he made his claim to the Minister or such other address as he may notify in writing to the Secretary;
(b)if it is sent to him at the address by fax or other similar means, in which event the document shall be regarded as sent when it is received by him in a legible form;
(c)if it is delivered to him or left at his address referred to in (a) above.
(2) The proper address for the Secretary is the address of the Tribunal, for England and Wales, at Government Buildings (Toby Jug Site), Hook Rise South, Tolworth, Surbiton, Surrey KT6 7NF, and for Scotland, Pentland House, 47 Robb’s Loan, Edinburgh EH14 1TW, or such other address as the Chairman of the Tribunal shall announce by advertisement published in the London or Edinburgh Gazette.
(3) Any document or thing required or authorised to be sent or delivered to, or served on, a company shall be duly sent, delivered or served if sent or delivered to or served on the Secretary of the company at its principal or registered address for the time being.
(4) Any document or thing required or authorised by these Regulations to be sent, delivered or served on a partnership shall be duly sent, delivered or served if duly sent delivered or served on any one of the partners for the time being.
(5) The service of any document on the Secretary of the Tribunal shall be effected by the same being handed to the Secretary or being received by post at the address of the Tribunal.
(6) Any document required to be given or sent to the Minister may be so given or sent by being handed to, or sent by post in any envelope addressed to any officer of the Minister for the time being authorised by the Minister for the purpose.