You queue up by the pub at london fields on the day and exchange your barcode receipt thingy for an actual ticket. This takes quite a while but I guess it is so Southwark cyclists have a realistic idea of how many people they will need to bring back. Otherwise bedwetters would upset the logistics of the whole thing....
This is no longer true. If you've bought a ticket you'll get an email detailing what to do.
@T_Unit
This is no longer true. If you've bought a ticket you'll get an email detailing what to do.