1) Make your order. Add everything to your cart that you would like to purchase.
2) When you are finished selecting your products, hover over the cart icon. Here, there will be a button that says "View Cart". Click on it.
3) From this page, navigate to the dropdown menu on the right that says "Use Credit". Click the arrow to display your credit information.
4) Enter the amount of your credit that you would like to use. Alternatively, you can select the box that says "Use Maximum Credit" to use up the remainder of your credit balance.
5) Click "Proceed to Checkout". Check your total. The amount of your credit should have been deducted from your total amount owing. If the credit did not work, please contact support.