We are currently aware of a bug that affects some Amazon orders which we are in the process of resolving.
If you have ordered multiple items from Amazon that ship separately, Amazon captures payment for each individual shipment. QuadPay does not support multiple captured payments at this time however we are adding support for this shortly.
If you want to purchase all items on your der via Amazon using QuadPay, you will need to purchase the items individually or choose an alternate payment method.
Please note for payments that are declined via QuadPay for your Amazon order, Amazon may default back to an existing credit card on file automatically.