If your tracking info says "delivered" then that is the most up to date info (aside from an AOR) that either CP or IRCC can give unfortunately.I did have a track number and required signature but in april people can't do signature upon arrival so it said on CP website, my application was delivered but Sydney center received it or not is another story . I called CP and also doubted how Sydney center is going to confirm just for my package over hundreds of thousand paperwork to CP. The guy from CP asked me the phone number but i told him CIC won't give that info publicly so he left it blank I assume so today a message from CP said it won't proceed investigation without the contact info . i will try to give them general line of CIC and see how it goes . Thanks for the thought though and finger crossed they just haven't fully opened application for April yet as well as mine
Download your tracking confirmation or look on the CP website. Here's my confirmations.
Does yours say something different that alludes to it not actually being delivered?
IRCC for sure have not fully opened April. There are still applications from January 2020 not opened. I still don't have AOR and so I totally understand where you're coming from - a signature would have been great for peace of mind - but the fact remains that IRCC are drastically behind by months sadly so even with a signature it would not be a guarantee that you would have an AOR by now.