After levy of assessment as provided in section 1282 of this title, upon the filing of a further detailed report by the Commissioner, the court shall issue an order directing each member (if a mutual insurer) if he shall not pay the amount assessed against him to the Commissioner on or before a day to be specified in the order, to show cause why he should not be held liable to pay such assessment together with costs as set forth in section 1285 of this title, and why the Commissioner should not have judgment therefor.