I sent my work permit on 7 Jan and IRCC received it on 13 and I got my work permit back on 24 Jan. It took less time because I attached letter of urgency. I basically attached the letter that says “I am not able to open a bank account since details are wrong in my work permit and I can’t get...
I can’t say much since mine was work permit, have you received any emails from them ?, I think it takes time so don’t worry, you will get it soon, I also sent through PO Box 8784, be patient