At least if you read this ad they do have a disclaimer that they are not Amazon, but they dont tellyou who they actually are either.
Look at that HUNGE email address that makes no sense. As for that supposed account number? I have nothing even similar that I know of.
“Action Requested: Amazon Prime Coupon @ no cost!” leads to a website http://eaglros.net/ua.php?ci0=1aj4a3Yh9a091j9di3hbuuhX3Y24R3znR5vXY8sAp3|_Ng07BZRT|6O79a34phphRY3NFqgRwsg and the unsubscribe link sends you to the same place
From: xxxxx’s AmazonPrime [mailto:NANDWRML9GW5Hbuz8@imap.cyprerd.net]
Sent: Thursday, July 13, 2017 12:33 PM
Subject: Final_Notice: Amazon_Rewards Expiring-Soon!
55322447990 Amazon amazon rewards amazon shopper account number http://eaglros.net/ua.php?by0=1aj4a3Yh9a091j9di3hbuuhX3Y24R3znR5vXY8sAp3|_Ng07BZRT|6O79a34phphRY3NFqgRwsg http://eaglros.net/ua.php?ci0=1aj4a3Yh9a091j9di3hbuuhX3Y24R3znR5vXY8sAp3|_Ng07BZRT|6O79a34phphRY3NFqgRwsg imap.cyprerd.net NANDWRML9GW5Hbuz8 NANDWRML9GW5Hbuz8@imap.cyprerd.net