Hi, i'm trying to buy the ticket for the train from prague to krakow on the 8th september 2014 on the CD website and it seems that I have to contact the customer service as I'm not able to buy it online. When I tried to do that, they told me that they are not authorised to sell online tickets for the summer period and that I have to buy the tickets at the train station. Is this normal? Do seats usually run out and how much will they cost at the station? If you guys have better options for trains or buses I'm at all ears :). Thank you!!