For those who may worry if you've not received your second email regarding your username and password to log on to PR Confirmation Portal, you may want to check your spam/junk box and look for it first, keywords could be "New credentials for PR Confirmation Portal ". If you still couldn't find it, don't hesitate to reply to the the email address and ask for your credentials, cuz in my thoughts, it shouldn't take so long (a week) for them create that.
My first email came on June 24 and got second email in same day but went to spam. I just asked them and they replied me pretty quick. Finally found this in spam.