IRCC will not limit to 30days if these error happens. I mean to say they will understand if there is a situation..
Back in 2016, I was travelling india for family reason and my PR got approved feb end. I had to submit in New Delhi office, so raised web form to send me the address to send the passport. It took more than a month time and they sent too.. unfortunately I had to travel back to Canada by the time they sent address. Then I came Canada and submitted passport in May beginning.
so they accepted and printed my visa. When you have genuine reason because of which you cannot submit passport within 30days and you raised webform, they ack and accept it.