Reinwood Ltd v L. Brown & Sons Limited - If a valid notice to deduct LADs is issued following a certificate of non-completion and then subsequently, but before the final date for payment an extension of time is granted so that the certificate of non-completion falls away, the notice to deduct LADs nonetheless remains valid and the employer may deduct the LADs. If it is later found that in light of the extension of time the amount of LADs deducted is too much then the employer (under the provisions of the contract in question) had an obligation to refund the excess deduction within a “reasonable time”. No definition of a reasonable time was given and as such this concept may be open to abuse. Also if the deducting payer becomes insolvent before the money is repaid the payee inevitably loses out.