I am from Vancouver, BC, my application was received by IRCC on March 29, 2019. I called the call center today and they informed me that they are currently working on April 1, 2019 batch. I inquired the agent about my file, she said that she could not find any information, either the Sydney office still not opened my file or they have returned my file, but she asked me to wait for one week and if I don't receive any thing then I should give them a call. Not sure how long will it take just to get AOR.