+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
its on the back of the AOR if you received one. Mine's at home. Will get it later if no one answers here.
 
reksa said:
FSW-Centralized-Intake-Office Fax No.?
Fax No. for CPC, Sydney 1-902-564-2781

Source: http://www.cic.gc.ca/EnGLish/pdf/kits/citizen/cit0457e.pdf
 
reksa said:
FSW-Centralized-Intake-Office Fax No.?
Citizenship & Immigration Canada
Case Processing Centre
P.O. Box 7000
47-49 Dorchester St.
Sydney, Nova Scotia
B1P 6V6
Scot Stevens, Administration Officer
Tel: 902-564-7819
Fax: 902-564-3207
E-mail: scot.stevens @ cic.gc.ca

Source: http://www.contractscanada.gc.ca/en/ns-e.htm

You can call on the number to take the concerned number.