I don't know if this information will be helpful for someone but i wanted to share none the less since i could not find it anywhere.
In my case, I had missed the deadline for passport submission since the email went to my spam folder and nothing was updated on my CIC account. However when i found the email 20 days pass 30 days deadline, i e-mailed CPC-Ottawa if they would be able to extend deadline for me as I missed it being unaware of the PPR. They responded back in 24 hours that they have granted 30 days extension from original deadline and I was able to send my passport in time with other documents.
If someone is in the same boat, please follow these steps and then it is upto them to make a decision on extension.