Upon checkout, you will be prompted to enter your gift card after confirming your billing and shipping address. Underneath "ENTER GIFT CARD OR PROMO CODES" you will view an option that says "Redeem a Gift Card". Simply enter your 18-digit gift card number and pin. If your gift card is only 16 digits, you will not need to enter a pin number.
You can also check your Gift Card Balance to ensure you have enough funds available to place your order. If your card is not applying, please contact us at 1-800-875-9453 and we would be happy to look into this for you!