As requested, here's a copy of the email I received:
Greetings from Amazon.com.
A careful review of your account indicates that you have required refunds on a large majority of your orders for a variety of reasons.
In the normal course of business, the occasional problem is inevitable. The rate at which such problems have occurred on your account is extraordinary, however, and cannot continue. Effective immediately, your Amazon.com account is closed and you are no longer able to shop in our store.
Please know that any accounts related to yours have also been closed. If you were to open a new account, the same will result and it will also be closed. In the event that you attempt to do so, we will not accept the return of any additional orders, nor will we issue further refunds in connection with any future orders. We appreciate your cooperation in refraining from using our web site.
Going forward, all inquiries must be directed to firstname.lastname@example.org
Please do not contact regular Customer Service again, as they will no longer be able to assist you.
There are so many things wrong with this, I feel sure there must be an error:
1) I've only returned things that were defective, in complete accordance with Amazon's policies. Not once did I ever receive a warning or a cs rep who was less than perfectly happy to process an exchange or return for me.
2) I've kept far more orders than I've ever returned, both for corporate and personal use.
3) I am now unable to access archived copies of the Kindle books I've purchased legally, and have no other way to legally purchase DRM'ed books on the device.
4) I also have no access to videos I have purchased from Amazon.
5) Since I can't contact customer service, I cannot get any warranty service for my current Kindle, and the email explicitly states I can't return anything (not that I'd want to!)
Has anyone experienced this before? And besides Consumerist, any idea how I can rectify the situation?