(1) A claim form that has been served within the jurisdiction by pre-paid post is deemed to be served, unless the contrary is shown, on the day shown in the table in rule 6.6 and the provisions of rule 6.6(2) and (3) apply.
(2) If a claim is sent to the legal practitioner of a party who certifies that he or she accepts service on behalf of the defendant, the claim is deemed to have been served on the date on which the legal practitioner certifies that he or she accepts service.
(3) If an acknowledgment of service is filed, whether or not the claim form has been duly served, the claimant may treat —
(a) the date of filing the acknowledgment of service; or
(b) (if earlier) the date shown on the acknowledgment of service for receipt of the claim form,
as the date of service.
(4) A claimant may file evidence on affidavit to prove that service was in fact effected on a date earlier than the date on which it is deemed to be effected.