After reading reviews on line, we decided this would be an ideal way to spend a dull afternoon in Windsor. I booked four adult tickets on line around 10.30am, paid with PayPal and went out for the day. We were actually at the Duck stop on Thames Street when I received a message to say that the tour was cancelled. No reason was given. I rang the contact number on the information board and spoke to a very unhelpful man, who told me there were no tours that day (Sunday 12th Nov) and that I had no booking. I had an authorised PayPal receipt, admittedly no money was taken from my account, but I do not understand how I was able to book this tour when it was not available. The man on the phone was unable to answer my questions as to why this was. Very poor service.