To use your eGift card on ghdhair.com, enter the eGift Card code in the appropriate box and click the arrow to the right of the box to apply this.
If the total of the order is less than the amount on the gift card, the remainder will be available for you to spend on a subsequent order. If the total of the order is greater than the value of the eGift card, you would pay the outstanding balance via another payment method.