It seems this is a new way of confirming PR applications to avoid Covid outbreak for applicants within Canada.Hi, I am in similar situation as urs, i received the invite for prearrival services on June 17th, and today IRCC sent me a letter asking for more details to set up an account in "PR confirmation Portal". Do you know this?
I am still waiting to hear from them on such request, already raised the webform.
Please keep updating your status so we can be sure on what's going on.