How customers can redeem Gift Card to checkout on Website
When customers have Gift Card codes, they can use them when checkout an order.
On the website, customer can apply the gift code as a discount during the Review & Payment process. they can tick the checkbox next to Use Gift Card to check out.
Customer can enter the gift code manually, or choose from gift card codes that she purchased previously. Press Add Gift Card to apply the code.
If the gift code is valid, the system will apply a discount to the order. Customer can continue to place the order.
The customer can check the gift card balance on the website after they log in, under the Gift Card tab.