Service of process, etc. on limited liability company

(1) Any summons, notice, order, document, process, information or written statement required or intended to be served on a limited liability company may be served, (a) by leaving it, or by sending it by registered mail addressed to the limited liability company, at its registered office; or (b) by leaving it with, or by sending it by registered mail to, the registered agent of the (2) Service of any summons, notice, order, document, process, information or written statement to be served on a limited liability company may be proved by showing that the summons, notice, order, document, process, information or written statement, (a) was mailed in sufficient time as to admit to it being delivered, in the normal course of delivery, within the period prescribed for service; and (b) was correctly addressed and the postage was prepaid.