You're either very confused or something else is going on.
Amazon storefronts or products cannot be listed in Google Shopping.
To be able to list in Google Shopping, one needs to own the store or landing page with crucial details. And most importantly, you need to get the domain verified.
Amazon is not a seller but a marketplace - so the onus to list products is on the sellers. And I doubt Jeff will let any sellers verify the domain in Google. Google Shopping is also paid and not free to list.
So, show us steps to reproduce this. What link did you visit to get to the Amazon URL?