For any organizational issues, including verification of payments, please contact the Organizer: Stowarzyszenie Bydgoska Masa Krytyczna
E-mail: kontakt@masa.bydgoszcz.pl
Phone number: 889 971 635
In case of any problems with registration or technical mistakes on the list of participants contact B4SPORT:
E-mail: kontakt@b4sport.pl
Phone number: +48 523 076 410