At any time between—
the making of an order under section 129, and
the determination or settlement of the complaint,
the employer or the employee may apply to an employment tribunal for the revocation or variation of the order on the ground of a relevant change of circumstances since the making of the order.
Sections 128 and 129 apply in relation to such an application as in relation to an original application for interim relief except that, in the case of an application by the employer, section 128(4) has effect with the substitution of a reference to the employee for the reference to the employer.