Rule 5 Service and acknowledgement
(1) The claim form shall be served on the defendant by sending it by first class post to his last known address; and the date of service shall, unless the contrary is shown, be deemed to be the 7th day next following that on which the claim form was posted.
(2) Where any process or order of the court or other document is required under proceedings subject to these Rules to be served on any person who is not in England and Wales, the court may order service on him of that process or order or other document be effected within such time and in such manner as it thinks fit.
(3) The claim form served on the defendant shall be accompanied by an acknowledgment of service as provided for by practice direction and CPR rule 8.3(2) (dealing with the contents of an acknowledgment of service) does not apply.
(4) The acknowledgement of service shall state that the defendant should indicate -
(a) whether he contests the application on the grounds, that in case of any particular company -
(i) he was not a director or shadow director of the company at a time when conduct of his, or of other persons, in relation to that company is in question, or
(ii) his conduct as director or shadow director of that company was not as alleged in support of the application for a disqualification order,