Gift cards have a unique alphanumeric code printed on them (e.g. A1B2 3C4D 5E6F 7G8H). During checkout, you will be able to enter a Discount code (see below). Enter the code from your Gift Card and press 'Apply'. The amount of the Gift card will be deducted from your order then you can 'continue to payment method'.
Please note: Gift card codes are considered currency, so anyone with which you share the gift card's unique code can redeem the gift card during checkout on the K-House store.