i've tried to use this app for the past two days and DEVS. Please help me. i'm not sure if i'm doing something wrong or if your amazon card/page is not in working order. I'm ready to move on but i like the idea of this app and would love to try it. where and when do I press use affirm? i though i got prequalifed for 350 but every time the app sends me to amazon to shop the check out is in amazon and i do not see any use affirm button. please help!