(1) A person against whom a counterclaim is made may file a defence to the counterclaim.
(2) The period for filing a defence to a counterclaim is 28 days after the date of service of the counterclaim.
(3) The rules relating to a defence to a claim apply to a defence to a counterclaim.
(4) A defence to a counterclaim must include a certificate of truth in accordance with rule 3.11.