FYI...
Challenges must be issued in person and with a Master of Challenge present to mediate to be considered honorable and valid.
Dishonorable Challenges result in a loss of 4 Temporary Honor Renown, and may have their results overturned or nullified by any Philodox of Rank equal to the lowest Rank Garou involved in the Challenge-in addition to whatever other punishments may result.
Also from the new Addendum.
Upswing of this one: don't challenge until you can get the Master of Challenge to oversee it.