Did you fill out the "Use of Representative" form ? This form is optional but, should be filled out if you would like to represent the principal applicant through PR processing. In this case, you can supply your own address (Canadian) as well as email, and will get all correspondence redirected to you.
If you haven't filled out that form, and used the home country address then any correspondence sent via snail mail will go to the home country. In my case, all correspondence was over email however.
BTW, you can still fill out the 'Use of Representative" form and send it to IRCC.