If you have a voucher code, it will be applicable on your next order.  All you have to do is fill in the code of the voucher in the “VOUCHER CODES” field when confirming your order.  In order to avoid errors in typing the discount codes (upper/lower/case/numbers), we advise you to copy/paste them from the email in which they were sent to you.  A voucher can only be used once and remains valid for 6 months. Once the code is inserted, select OK. The amount of the voucher is automatically deducted from your order.