US users:

What you need to do is simply copy and paste your gift certificate or store credit code (including the "@" sign) into the required field during checkout and click apply to redeem.

Should you have any problems applying your voucher, just copy and paste the coupon code or a message into the comments box at checkout and we will make all the necessary adjustments before your card is charged. Please note that entering your credit card information is a necessary step in the order process. If your order totals the amount of the credit or less, your card will not be charged. If your order amount is greater than the amount of the credit, you will only be charged for the difference.

UK Users:

All you have to do in order to use your store credit is place a new order online using your user-ID. The store credit will then be applied to this new order automatically. Please note that entering your credit card information is a necessary step in the order process. If your order totals the amount of the credit or less, your card will not be charged. If your order amount is greater than the amount of the credit, you will only be charged for the difference.