I am interested to reach Kosice, Slovakia from Budapest by train. There are two trains making this distance in 3:30 hours, but I haven't managed to understand how I can buy the tickets. - at one trial I found a site where the ticket had the price 9.90 euro but as to be collected at "collection points", for which I didn't find any explanation - at the second trial (in a Check rail site) there were the same trains, tickets cost 47 euro and can only be sent by usual post.
Has anyone an idea either what are those collection points and where are they described, or why can be such a difference in price between the two sites? Thanks, Veronica