People actually have sued against that in Germany, and a German court determined that Amazon has to allow you to recover all your data, and all digital products (e.g. Amazon Kindle books) you paid for.
In the USA, non-negotiable click-through agreements are legal. And we, the citizenry, can give up a good class more of rights then the EU allows. These rights would have protected their citizens, and in your instance have. They do not protect US citizens.
We have small claims, and the hope an instance of the company resides in the state. If not, they can effectively ignore small claims. Nothing to collect from.