(1)Due service under section 8(1) of this Act is effected by delivering the documents in question to the former vassal or by sending them by registered post, or the recorded delivery service, addressed to him at an appropriate place.
(2)An acknowledgement, signed by the former vassal, which conforms to Form A of schedule 4 to this Act, or as the case may be a certificate which conforms to Form B of that schedule and is accompanied by the postal receipt, shall be sufficient evidence of such due service; and if the packet containing the documents in question is, under subsection (1) above, sent by post but is returned to the former superior with an intimation that it could not be delivered, the packet may be delivered or sent by post, with that intimation, to the Extractor of the Court of Session, the delivering or sending to the Extractor being taken to be equivalent to the service of those documents on the former vassal.
(3)For the purposes of subsection (2) above, an acknowledgement of receipt by the Extractor on a copy of those documents shall be sufficient evidence of their receipt by him.
(4)The date on which notice under section 8(1) of this Act is served on a former vassal is the date of delivery, or as the case may be of posting, in compliance with subsection (1) or (2) above.
(5)A reference in this section to an “appropriate place” is, for any former vassal, to be construed as a reference to—
(a)his place of residence;
(b)his place of business; or
(c)a postal address which he ordinarily uses,
or, if none of those is known at the time of delivery or posting, as a reference to whatever place is at that time his most recently known place of residence or place of business or postal address which he ordinarily used.