For those called ircc and got TFN, it's likely bcz their TFN is already issued, just invisible to us applicants, thanks to the great transparency culture of the ircc

. What the calling center agent can do is just look at the screen and tell them; they don't have the authority to issue anything. Previously, applicants can use an "F12 trick(/bug )" to see it by themselves via the PR application portal but it has since been rendered useless after the ircc found it out months ago. The trigger was possible like this: thousands of people(guinea pigs of the then newly introduced non-EE online PR application system) had waited unprecedentedly for more than 12 mo and didn't even get their FN(me included) due to the glitch in their fantastically made million tax dollar worth system; then, naturally, people got panicked, searched the internet and the F12 trick got spread; at the end, boom, the wicked dragon found it too and shot it to the death along with people's mental healthiness. Again, all glory to the great, great transparency culture of the ircc

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" 'Take care of' not the problem, but the one who raised it."
And back to your question, I think it could be said that you are likely fine. It's caused by THAT glitch mentioned above that for some reason the files you've uploaded are still stuck in a file repository and haven't made their way to the GCMS system for THE powerful bureaucrats to open it. So your files do not go directly to the case processing system, instead, they'll have to stay in a mid-way station, wait for the machine to pick them up, and upload them to the GCMS system(*from my experience I suspect this is when you'll get your TFN); once your files are opened and the integrity is proved, the FN(AOR) will be issued.
So the phone lady/gentleman suspectly can only see whether your file is in the GCMS system, not the mid-way station; thus she/he said "can't find your application".
Usually one would imagine that a million tax dollar worth system is capable of accomplishing a simple task like picking up and transferring a bunch of files btwn two file storage, except it CAN'T lol. (Or at least couldn't, I can't tell, since people like you nowadays are still getting ****ed by it.) Back in our days, people suffered from files partially failed to be uploaded, and totally failed to be uploaded. It seems that the machine was not designed to consistently/repetitively try to upload/transfer the files, manual intervention was required at that time. Is it fixed? Not sure. But it looks better now in terms of the waiting time for the AOR. (As a side note, I know someone had waited for about 17 mo for the AOR, one of us guinea pig applied back in apr~may 2021)