Where a person to whom a direction given under this Part is addressed had no opportunity to object to the giving of such direction, he may apply to the President, by notice to the Secretary to the Tribunal, to vary it or set it aside, but the President shall not so do without first notifying the person who applied for the direction and considering any representations made by him.

Where a person on whom a witness summons under this Part is served had no opportunity to object to the service of such summons, he may apply to the President, by notice to the Secretary to the Tribunal, to vary it or set it aside, but the President shall not so do without first notifying the person who applied for the summons and considering any representations made by him.