57 Complaints to [employment tribunals]
57 Complaints to [employment tribunals]

(1)     An employee may present a complaint to an [employment tribunal] that her employer—

(a)     has unreasonably refused to permit her to take time off as required by section 55, or

(b)     has failed to pay the whole or any part of any amount to which the employee is entitled under section 56.

(2)     An [employment tribunal] shall not consider a complaint under this action unless it is presented—

(a)     before the end of the period of three months beginning with the date of the appointment concerned, or