2An application, other than one made at the time the fine was imposed, shall be made in the case of a fine imposed in the High Court to the Clerk of Justiciary, and in the sheriff court to the sheriff clerk of the court by which the fine was imposed ; and such application may be accompanied by a statement in writing setting forth the reasons therefor and any proposals the applicant may have for the payment of the fine by instalments or for variation of the order for payment of the fine by instalments, as the case may be.