Dirk, thanks for this. I tried it today to book a stay in Auckland, and received an email confirmation from Hilton showing HHonors Certificate in the rate description (and 750NZD for room rate per night!).
I'll call to confirm everything is ok,but since I received an email confirmation I'm guessing it is. I'll get cert soon, but holding off as I may change the date/length of the stay.
I like the ability to do some checking for availability & moving dates around w/o having to tie up a cust service agent for this type of reservation.
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Sharon