Booking.com only lets verified guests log in and leave reviews, but Ms Wittensleger remembered that a manager at the hotel had photographed her Booking.com confirmation email. She later realised that her PIN number and booking reference contained in the email were used to log in to her booking on the site and post a review. A Booking.com spokeswoman said: "The manager at the accommodation did indeed break the rules by photographing Ms Wittensleger's booking confirmation and subsequently using the information collected, including the reservation ID and PIN code, to fraudulently leave a review on her behalf." Get the full story at The Telegraph