I recomend you to go one/two days earlier to poland and go there to a train station and ask them for a ticket. There is no other way, if you want to take this High-Speed train (but I'm sure there are a few NON High-Speed trains they doesn't need a reservation) In the Railplanner-App I've seen that you can make reservations also at a site called "PKP" Maybe you can also try this site It won't let me book it...
Don't be shy and let us know about your challenge.
Already have an account? Login
No account yet? Create an account
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.
Sorry, we're still checking this file's contents to make sure it's safe to download. Please try again in a few minutes.
Sorry, our virus scanner detected that this file isn't safe to download.