I don't say that you will get in touch with CIO on phone. Even the e mail may not be replied.
However, the information I have :
If you would like to send an email to the CIO, Nova Scotia - ( Not sure you will get any response _
FSW-Sydney-Search-Enquiry @ cic.gc.ca
If you would like to call the CIO
+ 1-613-944-4000. (8am to 4pm )
Has to wait online for 20+ minutes. .
Please note that they do not entertain callers from outside Canada.
If you would like to send a letter by post to the CIO, Nova Scotia,
Centralized Intake Office
P.O. BOX 7500
Sydney, NS, B1P 0A9
Canada
For a courier to the CIO, Nova Scotia :
Federal Skilled Worker
Centralized Intake Office
196 George Street
Sydney, NS, B1P 1J3
Canada