To my knowledge they don't operate via Phone No, I guess I can understand that.
It may be the case that the contact for that branch is no longer holding that position.
My suggestion would be to make contact with another branch and ask them to refer you to the approprate ppl.
Other than that ask here on the Jayco Travel Diary.
http://forum.jayco.com.au/forumMessages.asp?Cat=15&criteria;=0&MsgCriteria;=38188&Delete;=0 You will need to join to post a thread, but there is no cost involved at all, just takes afew minutes.