I have now emailed the Renaissance Riverside in Saigon three times in total asking for a late departure room( and how much it would cost). I can not do this through the Marriott website, although they took my booking, as they said I had to contact the hotel directly. As I only have 4 days in Saigon and have an 8pm flight out I don't want to have to check out of the hotel midday.Is this an indication of the service I am likely to get when I am there?