Hey Arsh,Hey it will be fine if they process your application but it will take a long time. If you need it urgently then just visit the airport where you landed. Go to CBSA office there . Explain the problem you have also tell them that service canada sent you to their office. Then they will send you to Immigration department where you get solution to your problem.
I hope it will help you alot.
With regards
Arsh
Facing the same problem - landed in Toronto last week and cant get my SIN. Where is the CBSA office in the Toronto Pearson airport? And do we need to enter through the departure gate of the airport (given the covid entry restrictions)? Appreciate your response!