I have ordered notes 2 months ago, but notes not received yet. I have ordered a new set of notes last week. There is nothing sensitive from my perspective, however, IRCC thinks different.
I'm in the same situation! I have applied for a new passport.
What you need to do is to submit your new passport scans to IRCC via webform and then apply for PGWP extension using your new passport.
I've seen a few got the portal emails recently!
Maybe you can check this thread:
https://www.canadavisa.com/canada-immigration-discussion-board/threads/pvo-ottawa-and-svo-sydney.791574/page-3