(1) To discontinue a claim or any part of a claim a claimant must —
(a) serve a notice of discontinuance on every other party to the claim; and
(b) file a copy of it.
(2) The claimant must certify on the filed copy that notice of discontinuance has been served on every other party to the claim.
(3) If the claimant needs the consent of some other party, a copy of the necessary consent must be attached to the filed copy of the notice of discontinuance.
(4) If the claimant needs permission from the court, the notice of discontinuance must contain details of the order by which the court gave permission.
(5) If there is more than one defendant, the notice of discontinuance must specify against which defendant or defendants the claim is discontinued.