cpc-ctd-ottawa@cic.gc.ca
IMPORTANT: You must provide us with your application number in the subject line of your email and include in the body of your email the following information:
* Surname and Given name(s);
* Date of birth (YYYY-MM-DD);
* Unique Client Identifier (UCI) number / Client ID number;
* Category of Immigration (CEC, Provincial Nominee, Family Class, Federal Skilled Worker, Temporary Resident);
I e-mailed them @ 9am central time on a weekday - got a response in 15 minutes. That was from June 15th. But I see where ppl say they are now taking longer to respond.