You must find a lower publicly available rate on a non-Hilton Family booking channel (except for "opaque" websites) for the Same Accommodations (as defined below) within twenty-four (24) hours of booking your reservation. The term "Same Accommodations" is defined as the same accommodations at the same hotel with the same dates of stay, same length of stay, same number of guests, same room type, same cancellation and advance purchase policies, and the same terms and conditions governing the room rate.


Opaque websites are basically anything but Hilton.
The BRG is stating if you see AAA rate of $109 online for a king and call the hotel directly and they quote $129 for that same king............... Then you qualify for the BRG