We are all reading tons of email every day and anti-spams tools are not suppressing all bad ones (see Nuxo for an online one). I received this one today and didn’t see the URL was not pointing to amazon. Since I am not Amazon customer, I give it a try to see involvement in phishing.
The targeted page is pretty good and I assume one can fill it if Amazon customer. Don’t hesitate to install phishing checker bar like Netcraft one, this will avoid you some trouble with the new phishing site which are trying to hide themselves even better.