I'm very happy with Canon's customer service. Here is the email I received in just over an hour from the initial call:
Dear Jeff Solenberg,
Thank you for emailing me your information. I have reviewed it, and everything is there that I need to have your full rebate processed. I will have the rebate house process it and get it out to you.
If you have any further questions or concerns, please feel free to contact me.
Thank you,
Katie
Canon Customer Care - Rebates
Ph: 757-413-2885 x2167
Eastern Time 9 - 5 pm
Fax: 800-231-9243
or
Canon Rebates
PO Box 2338
Chesapeake, VA 23327
The moral of the story, call Canon, not Young America if you want action.