I took the test on the 14th, and my friend took it on the 24th, both of us in Scarborough. Guess what? She already received the oath letter! That means thy mailed it the day after the interview. Oath is on April 14.
I have nothing, though. Officer said everything was good and to expect oath letter "in 2 to 4 months," the usual speech, which my friend heard too. Now that my friend got the letter, and knowing that her first test invite was lost, I should be a little concerned that my oath invite may be lost, so I called the CIC main number to see if there was any chance to get someone live (knowing that it was highly unlikely). I never called them before.
After having checked online for the right info and not finding the call centre hours, and after several minutes of going through menus, I was finally informed that the centre is only open Monday to Friday 8 am to 4 pm.
I'll call first thing on Monday.