Amazon has confirmed that the Amazon Google Play Gift Card emails from store-news@amazon.com were sent by mistake and will be contacting all impacted customers. An error in our email system resulted in an order confirmation email being sent to customers who did not purchase a gift card. They have fixed the error so it won’t happen again, and are emailing customers to inform them of the error and apologize for the inconvenience.
The Google Play Amazon Email

From: store-news@amazon.com
Subject: Important information about your Hotels.com gift card order
Amazon Prime
Dear Amazon Customer,
Thank you for purchasing Hotels.com gift cards from Amazon.com.
We would like our customers to be aware of some important information relating to purchase of Hotels.com gift cards.
There are a variety of scams in which fraudsters try to trick others into paying with gift cards from well-known brands. To learn more about some common scam attempts that may involve asking for payment using gift cards please click on the button below, or alternatively contact us now .
See more information
Thanks again for shopping with us.
Amazon.com