Rule 3—(1) An order under rule 1 to show cause shall be drawn up by the court with sufficient copies for service under this rule.
(2) Unless otherwise directed, a copy of the order shall be served—
(a)on the garnishee in the manner required for the notice of the day of hearing in accordance with Order 3, rule 6 at least 15 days before the return day;
(b)on the judgment debtor in accordance with CPR Part 6 at least 7 days after a copy has been served on the garnishee and at least 7 days before the return day,
and as from such service on the garnishee the order shall bind in his hands any debt due or accruing due from the garnishee to the judgment debtor, or so much thereof as is sufficient to satisfy the judgment or order obtained by the judgment creditor against the judgment debtor, and the costs entered on the order to show cause.