After you have placed your desired wines in the cart, click on Checkout. After entering your delivery and billing address and choosing the method of payment, you will then be directed to the order summary page before confirming payment. On this page enter your voucher code and click apply to redeem the value of that voucher against your order. Please check the voucher's validity and ensure you enter it correctly. Vouchers do not affect delivery costs, cannot be combined with existing credit and cannot be used retrospectively.