Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible invasion by Kindle - updating purchased book without prior consent

I was reading and highlighting passages as I went along so I could go back to the historical references at a later time. After reading about 60%, I turned on the Kindle and found that all my highlights and bookmarks had disappeared. The Kindle Help representative advised me that the e-book, which I had purchased from Amazon some months before, had been updated (i.e., AMAZON DELETED THE VERSION I WAS READING -- WITHOUT MY CONSENT - AND REPLACED IT WITH A NEW VERSION). The highlights and bookmarks I had made in my version were gone forever. Further, Amazon would/could not advise me what pages had being updated. I FIND IT OUTRAGEOUS FOR AMAZON/KINDLE TO REACH INTO MY DEVISE AND EXTRACT A PRODUCT I LAWFULLY PURCHASED!! Would they come into my house in the middle of the night and sneakily replace a hard copy book I purchased from themThe Source: A Novel?