I'm booking my Bahn overnight sleeper for three people. I called my credit card so they knew I'd be making the purchase, and filled out all the information. When I got to the last page it says "an error occured, try again later". To get the sale price I've got about 18 hours left to be successful! Can anyone help?
I ran into the same problem when I went to book mine a few months ago. As I recall, you are travelling on October 6th, and the train will arrive on October 7th. It is now April 10th in Germany, which is 180 days from October 6th, and 181 days from October 7th. This is why it will not go through. Tomorrow after 3:00 pm Pacific Time, it will go through because it will then be 180 days from the 7th the arrival date of your train. Do not be surprised if you cannot get the same price for the three people that you get today. When I had this problem the price almost doubled the next day. It seems to be a glitch in their computer system that allows it to show you the low fare. The fact is though that fare is usually only available for one or two people. So you might try booking it for one or two and see if it comes up, if it doesn't for all three of you. That would mean making two bookings, but it could save a few dollars.
Good Luck tomorrow, let us know how it works out for you.