Unfortunately, only one coupon code may be used at a time on our website. Discount codes must be applied to your order prior to your purchase. If your order has been placed, your order total cannot be modified.
Also, please be aware that if you use a discount or coupon code with your order, and that discount brings your order total below the threshold amount for free shipping, your order will no longer qualify for free shipping. Shipping fees charged under these circumstances are not refundable.