Appeal by creditor
47.—(1)  The Court may, on the application of a creditor who is dissatisfied with the decision of the judicial manager in respect of a proof, by order reverse or vary the decision.
(2)  Subject to the Court’s power to extend the time, no application to the Court for an order to reverse or vary the decision of the judicial manager rejecting a proof filed with the judicial manager by a creditor, or a person claiming to be a creditor, may be entertained, unless notice of the application is given before the expiration of 21 days after the date of the service of the notice of rejection.