I don't think you can sue CIC, but you can complain and remember this come the next federal election. Make this an issue and let these politicians know this.
First, order your CAIPS notes, search here immipedia.ca/Ordering_FOSS_and_CAIPS_notes
Then read the
Operational manuals and bulletins
Here is the link
cic.gc.ca/english/resources/manuals/index.asp
OP 1
Procedures
5.2. Principles of the International Region
International Region achieves excellence in fulfilling its mandate and realizing its vision through a
shared commitment to:
• professionalism;
• client service;
• integrity;
• accountability;
• teamwork;
• fairness and compassion.
5.39. Response to inquiries and representations – clients and representatives
C) Quality of service complaints, or situations involving possible professional misconduct or malfeasance
• Immigration Program Manager by e-mail.
E-mail address format:

??
• If no reply after 30 days, Director for the geographic region by fax at 613-957-5802.
If you complain to the Embassy that is handling your file, the I/O will just suppress it. Instead complain to the fax number above. But if the I/O is still working on your file and finds out about your complaint they will go into retaliation mode and screw you over.
Also check this section of OP1
8. Procedural fairness
Not that they follow their own rules of course.
A senior I/O can earn as much as $101,000.00 per year and keeping an I/O at a foreign post costs the Canadian tax payers in between 200 to 300 thousand dollars a year.
The I/O working on our file is so incompetent he or she cannot even send an email to the correct address, couldn't get the extension right. What an idiot. And that is just one of a dozen mistakes that has been made on our file including misquotes, misleading statements and pure and utter fabrications.
If an I/O gets enough valid complaints filed against him or her, they can be fired.
With regards to pissing off Minister Kenney, remember, these MPs work for us and they should be more worried about pissing us off. If they show little interest or concern, if they are of little or no help, do not forget that when the next election comes. Talk this up with all your friends and family, talk to everyone that you can. A MP only has to lose by one vote and their career is over.