Originally Posted by HDoug
Get the order number from the book you want to reset (which is on the email confirmation of your purchase). Then go to Amazon, hit "Kindle Support" and from there "contact us" (which is a button on the right side). It will open a support box. Enter the order number and tell them you want them to reset the furthest read.
I just did this and they did it overnight. Thumb up for Kindle support!
...but thumbs down for having to call support when you want to re-read a book! Or someone else in the family wants to read it
Good reponse from Amazon given the process is poor though