You can try contacting customer service. I know some have had luck with that, others not so much. Although, sinces it's the same price at Kobo you can get it there and sideload it.
This happened recently with another agency book. It seems B&N does not adjust prices in the weekend.
The price will probably be adjusted on monday.
If you don't want to wait until Monday, Kobo books will work on your NOOK.
Perhaps if enough consumers do that, B&N will get the picture and work on the weekends; it's part of retail and hospitality... They aren't 9-5 M-F industries!
