Have used this offer in the past, but had to ring hotel direct to book the rooms. Don't think it applies to all Hilton hotels, especially here in the UK, but fairly certain we used it at the Doubletree Chester and Hilton St Georges, Burton on Trent in the past when not booking Sale rates. Don't think it applies to Sale rates and is possibly 50% off the flexible rate. Still a good saving though. Also, children 10 and under eat free at most Hiltons and Doubletrees in the UK, when eating with adult guests. Try ringing the hotel direct to see if they offer this facility.