One thing you can bank on with Amazon (pun intended) is that they’ll do their own thing, in their own way, on their own time. You can also safely assume that if an outside interest doesn’t align with theirs, they’ll be sure to resist it. That was the case with Apple Pay, where an Amazon rewards Visa, issued by Apple Pay partner Chase, went unsupported at launch. The only reason it would have been missing from your digital wallet was Amazon, but they’re working on support. Maybe. Someday.