Hong Kong Regulations

PROOF OF DEBTS RULES - RULE 13

Where a creditor has so valued his security, he may at any time amend the
valuation and proof on showing to the satisfaction of the trustee or the court
that the valuation and proof were made bona fide on a mistaken estimate or
that the security has diminished or increased in value since its previous
valuation, but every such amendment shall be made at the cost of the creditor
and upon such terms as the court shall order, unless the trustee allows the
amendment without application to the court.