I applied for study permit extension on 27th September 2022 and my study permit expires 8th October 2022. My application was forwarded to the IRCC Etobicoke office but that is not the problem. I got the refusal letter on 18th January 2023 saying "Your status as a temporary resident has expired. You did not submit an application for extension of your temporary resident status on or before the expiry of the authorized period.". Even though I have submitted the application and everything before the expiration date. I have mailed a letter to the Etobicoke office with proof from their website that I have applied at a date well before expiration. I am already in progress of my Winter term at the University and this is really depressing. How long will it take for Etobicoke to reply to my enquiry? IRCC told me that they have received my mailed documents. What is my best course of action right now to expedite the process and get a conclusive decision. Thank you.