(1) Service on a firm or partnership may be effected —
(a) by serving the claim form personally on a manager of the firm at any place of business of the firm or firm or partnership which has a real connection with the claim;
(b) serving the claim form personally on any partner of the firm; or
(c) in any other way allowed by any enactment.
(2) If the claimant knows that a partnership has been dissolved when the claim is issued, the claim form must be served personally on every person within the jurisdiction whom the claimant seeks to make liable.