Service and effect of order to show cause
Rule 3—(1) Unless the Court otherwise directs, an order under rule 1 to show cause must be served—
(a)on the garnishee personally, at least 15 days before the time appointed thereby for the further consideration of the matter; and
(b)on the judgment debtor, at least 7 days after the order has been served on the garnishee and at least 7 days before the time appointed by the order for the further consideration of the matter.
(2) Such an order shall bind in the hands of the garnishee as from the service of the order on him any debt specified in the order or so much thereof as may be so specified.