This is the link to The Canadian Broadcast Standards Council. You can lodge complaints with this organization about the CBC's decision NOT to run this ad.

http://www.cbsc.ca/english/complaints/howto.htm

Mailing address:
Canadian Broadcast Standards Council (CBSC)
P.O. Box 3265, Station D
Ottawa, Ontario
K1P 6H8

Complain directly to CBC at: http://www.cbc.ca/contact/index.jsp