"(1) that the employer had granted Miss Hill's request for holidays and was therefore required by the Working Time Regulations to pay her for them (she had taken 15 days' holiday out of the statutory annual allowance of 20 days during the course of six months' employment), (2) that what had occurred was payment, and not overpayment , and (3) that, in any event, no relevant agreement authorising recovery existed as specified in Working Time Regulation 14(4), namely "a relevant agreement may provide that, where the proportion of leave taken by a worker exceeds the proportion of the leave year that has expired, he shall compensate his employer, whether by a payment, by undertaking additional work or otherwise." "
"a relevant agreement may provide that, where the proportion of leave taken by the worker exceeds the proportion of the leave year which has expired, he shall compensate his employer, whether by payment by undertaking additional work or otherwise." "relevant agreement," in relation to a worker, means a workforce agreement which applies to him, any provision of a collective agreement …or any other agreement in writing which is legally enforceable as between the worker and his employer." "(1) An employer shall not make a deduction from wages of a worker employed by him unless- (a) the deduction is required or authorised to be made by virtue of a statutory provision or a relevant provision of the worker's contract, or (b) the worker has previously signified in writing his agreement or consent to the making of the deduction." (3) Where the total amount of wages paid on any occasion by an employer to a worker employed by him is less than the total amount of the wages properly payable by him to the worker on that occasion (after deductions), the amount of the deficiency shall be treated for the purposes of this Part as a deduction made by the employer from the worker's wages on that occasion." "(1) Section 13 does not apply to a deduction from a worker's wages made by his employer where the purpose of the deduction is the reimbursement of the employer in respect of- (a) an overpayment of wages"