A woman who placed a big computer order at Amazon had her account frozen while they tried to verify her credit-card, a process that went horribly awry (they demanded that she fax them her bank-statement, which she did, eight times, but they never got it, and who knows where those eight copies ended up). As a result, she is no longer able to access her Amazon account, including her Kindle ebooks. She can still presumably read them on her existing devices (assuming they don't remotely wipe them), but can't activate any new devices and until and unless she resolves this bizarre situation, her books will disappear forever when her Kindle breaks or its battery wears out.
That's right: if you order too many computers from Amazon, they might take away your books.
Amazon Cancels My $6,000 Order Because It Doesn't Know How To Use A Fax Machine