HelloI made the same mistake. I sent my outland spousal application to Mississauga instead of Sydney. Canada Post tracking indicates it was received on 23rd January 2020 but i haven't received an AOR email yet (5 months passed). I have sent a web form inquiry and i got the following reply.
, did you got any update on ur file ? I did same mistake and it’s almost 70 days and no update from them .