Does the resort fee credit apply on room rates on prepaid rates at eligible properties? I'm going to vegas in a few weeks and was thinking of staying at the Tropicana on the prepaid rate. As long as I using my Hilton Am Ex to pay the room charges online will that trigger the credit? I don't want to stay at the Trop unless I get the $250 credit and using the prepaid rate is the only way it pays me to stay there instead of the HGVC.