They will not inform you in principal applicant. They will inform your spouse email for the documents required. Check your spouse email. Sometimes the email will go into the spam. Double check if there is any.
If your email has changed by mistake you can call the CIC call center if you are in Canada. The details follow:-
Call Centre telephone number: 1-888-242 2100
Call Centre agents - Monday to Friday, 8 a.m. to 4 p.m., your local time, except for statutory holidays.
You must choose one of the first five recorded options before you can speak to an agent.
Note that agents cannot:
• answer questions about application status once it is sent to a Canadian visa office outside Canada,
• make decisions on applications, or
• Help process applications more quickly.