Recently booked at
Langham Sydney:
Amenity is Free Wifi (which is given to all rooms anyways)
The Grace Hotel Sydney -
Received an email from Expedia:
We are pleased to confirm your free, exclusive amenity at +VIP Access™ hotel The Grace Hotel.
You will receive an exclusive amenity of Free Breakfast; Free WI-FI; Guaranteed late check-out till 12pm for any B & B rooms..
Be sure to also ask about available room upgrades at check-in.
Enjoy your stay and your complimentary amenity.
When I emailed the hotel to confirm, they said they have received no such email from Expedia about this amenity.
But on arrival the hotel granted the complimentary breakfast. It seems Expedia sends them an email close to your arrival date