Am a silent observer so far on this forum. This is my timeline for Mississauga location.
1) We received your application for Canadian citizenship (grant of citizenship) on October 16, 2017.
2) We sent you correspondence acknowledging receipt of your application(s), and a study book called Discover Canada on November 15, 2017.
3) We started processing your application on December 4, 2017.
4) We sent you a notice on April 25, 2018 to appear and write the citizenship test on May 30, 2018 at 12:45 PM. The notice you will receive by mail will be your official confirmation of your appointment. If you have not received this notice prior to the date of your scheduled appointment, please contact us.
5) We sent you a notice on June 22, 2018 to appear and take the oath of citizenship at the citizenship ceremony to be held on July 25, 2018 at 9:00 AM. The notice you will receive will be your official confirmation of your appointment. If you have not received this notice prior to the date of your scheduled appointment, please contact us.