I made a hotel reservation directly with the hotel, and mentioned the wedding block. This put me in touch with THEKNOT.com Powered by HotelPlanner.com. HotelPlanner.com claimed they were Expedia. When pressed, they say they work with Expedia (and many many other 3rd parties). You won't get your money back. Suggest you go elsewhere and not take a chance on THEKNOT.com Powered by HotelPlanner.com (wedding people need to know this).