Service of Prohibitory Orders: personal delivery, registered post with acknowledgement, or affixation with a witnessed report. Service of a prohibitory order or any other order under the Act may be effected by: personal delivery or tender to the person or his authorised agent; sending by registered post with acknowledgement due to the person's last known residence, business place, or place of work (or the organisation's last known office address); or, if those methods fail, by affixing the order on a conspicuous part of the premises where the person resides, conducts business, or works, or on the organisation's office premises, accompanied by a written report witnessed by at least two persons.