The court may make a modification of maintenance retroactive to a date at least one month after the date that the motion to modify was filed with the court. In any event, the court may not award maintenance for a period of time in excess of 121 months. If the original court decree reserves the power of the court to hear subsequent motions for reinstatement of maintenance and such a motion is filed prior to the expiration of the stated period of time for maintenance payments, the court shall have jurisdiction to hear a motion by the recipient of the maintenance to reinstate the maintenance payments. Upon motion and hearing, the court may reinstate the payments in whole or in part for a period of time, conditioned upon any modifying or terminating circumstances prescribed by the court, but the reinstatement shall be limited to a period of time not exceeding 121 months. The recipient may file subsequent motions for reinstatement of maintenance prior to the expiration of subsequent periods of time for maintenance payments to be made, but no single period of reinstatement ordered by the court may exceed 121 months.