When you are ready to check out, and go into your cart, the box that has your subtotal amount has an option called "Use Natura Cash", there is a small arrow next to that. Click on that and you will see how much Natura Cash you currently have, and a small box below where you can enter in the amount. Please ensure that you enter the amount exactly. If you mistakenly have an amount over what you have in your account, it will not apply to any Natura Cash. Once you enter in the amount of Natura Cash you wish to use for your purchase, click on "Apply" and allow the screen to load. It should show up as a discount under your subtotal.