Are you checking the correct email address provided to IRCC? Have you checked your spam folder?
Maybe someone else has now experience, but is it possible to send a message through the web form before AOR? If you can, I would suggest sending a message asking through web form.
Hi, yes I am checking my email daily at various times. Nothing. I tried linking it to GCKEY by using the name DOB, and passport information. The application is not in the system. Tomorrow I mark 90 days of no emails. I heard webforms usually causes delays. The pr portal says "Submitted " nothing else. I haven't received it in mails either. It's weird I see many many march and April applicants already received their AOR and some started medical and biometrics. This is why I am getting anxious. Like I don't even know if all good or It's will be returned at p. Cuz that will only cause more delay and more waiting times. Which I can't afford.