117. The Official Receiver, or, as the case may be, the trustee, shall, within four days after receiving notice from a creditor of his intention to apply against a decision rejecting a proof, file such proof with the Registrar, with a memorandum thereon of his disallowance thereof. After the application has been heard by the Court, the proof, unless wholly disallowed, shall be given back to the Official Receiver or trustee, as the case may be.