I wonder if someone can assist with a Swiss rail ticket I purchased online today. The ticket download itself has no details about the connections or any information that I have indeed booked the Bernina Express. The ticket simply shows the date, the price and the start and end points with a QR code. I did click the link for details of the journey, which shows the Bernina Express train 953 from Chur. However, I was not given an opportunity to select seats on that train which I understand are mandatory. I will not be in Switzerland to get this straightened out until 4\11. Am I likley to have a problem?