We can only guarantee you a seat on the bus you have booked, but it is possible to change your bus registration to another departure, if there is space available on other buses.
You can do this by editing your bus ticket in the app or on the event site. The seat you have booked will remain yours until you have chosen another available seat. Please note that the deadline for changing your bus registration is August 14th.
There will also be shuttlebuses to Roskilde Station throughout the evening, which you will be more than welcome to use.