I've just found out that Canada Post doesn't track inbound registered mail since 2015 (back when I was living in Canada, they used to). So I'm looking for some feedback from people who've sent their applications via registered post: how many days after mailing the application did CIC send text notification and/or AORs. Thank you.
For my case, I sent my application via post office with registered mail on MAR 7 (Took near 2 months until I received CIC’s notification for application well received by them). My time line as following for your reference. So be patient, they will start your application form soon or later.
Application Received: May 26
Start Processing : Jun 26
Application Sponsor Approved: Aug 11
Application arrived LVO: Sep 8
Until now nothing update yet.
In between the waiting time, I didn’t call or check anything and just wait, everything will move on but it just need times only. If CIC need anything they will send you email or via website account, for my case they did.
Hope above help you.