The root cause looks to be the same. With one contact situation, all open tickets through the Support Center use the default values instead of the ones you specify during setup; "reason for contacting" and "deliver to".
This is broken functionality so I'm bumping this to "Must Have" and filing it under Milestone #19.
darren in the forums brought this bug and the closely related
CHD-711 to our attention. Please notify that same thread when its fixed.
http://www.cerb4.com/forums/showthread.php?p=5565#post5565
Verified fixed in stable build 791. (Appears to have been fixed sometime ago however.)