Night on Us credits
I've seen some people mention that the free nights from the Night on Us promotion show up in your HH account. I have one so far and the other should be on the way, but I got a "certificate" e-mail and other than that I don't see anything in my account to indicate the code or anything. Is this e-mail the Golden Ticket that I have to hold onto? and it has a number to call to book my award stay, does this mean I can't use it to book online?