Same issue happened with me. I filed my study permit on 20th July 2022 and never received BIL. When checked in Portal, some biometrics were already updated which obviously were not mine as I never applied for Canadian Visa earlier. Eventually my visa was refused in October, but no solid revert from IRCC on the BIL.I applied for a Canadian study visa on 19 August 2022 and I did not get a biometric appointment letter. After two days of my application submission, I logged in GC key account to check my biometrics appointment status but I saw biometrics were already updated. The date of biometrics was November 2019. I have never applied for any kind of visa for any country before in my entire life. And now I have submitted 3 times web form but I have not got any reply from IRCC. It's been more than 1 month.
I have reapplied for Visa this month, paid my fee biometrics fee again, but same biometrics are showing up in the portal. Still no update on BIL.