Discount voucher codes are entered on the final stage of checkout on the Order Summary page. After clicking "Checkout" you'll fill in your payment information and address, but you won't be charged until you click the "Place Order" button on the next page. On the Review Order page there will be a box for you to enter your code on the right side of the page. The order total on the page will automatically refresh to reflect the discount. Your card will not be charged until after you review your order and approve it.
If your code isn't working, see "Why isn't my voucher working?" for troubleshooting tips or contact us and our support team will help identify the issue.
Worried about waiting? Just place your order without the voucher and then contact us and we'll adjust your order so the right discount applies.