May I refer the honourable netizens of this parish to Arrivee 100 (Spring 2008) when I wrote in "Just A Minute",
"AUKs riding Perms are requested to confirm actual dates to organisers before the start of the ride, if not previously given. (Text, e-mail or voicemail will suffice.)"
To amplify this and give some background, the essential ethos of Audax is the acceptance and meeting of a challenge. In a case similar to the example Greenbank has detailed, or something like the Middle Road, the advice of intention to ride must be before the start of the ride and include details of which event is being ridden, if the organiser has sent a variety of cards or there can be any doubt. It is not acceptable to start a 400KM event, say, cut the ride short for any reason and then submit a claim for the 300+ KM actually ridden. The challenge has not been met, just as a participant in a Calendar event who does not complete the whole route has not succeeded.
Equally, having indicated a 200KM ride, there will be no validation for any additional distance if the rider is on song. By all means ride the extra distance and hopefully have a great time, but it will not result in extra points. Similarly, where an organiser offers a choice of distances on their events, it is not possible to change to a longer one.
Trust this explains the situation.
Regards,
RP