arrosen

I booked a reward night using my wife's account 2 weeks ago at the InterContinental Berchtesgaden Resort. I went back earlier this week to book another room, and all of a sudden, there are no rooms available past February, 2015.

Any ideas why? Will this change? I need 2 rooms, and if I can't get a second one there, I will need to find a different hotel.

Thanks