Mine was also same scenario.
Applied on April 2019 and no update after my test which was done on sep 2019.
I tried from MP reference to get the update but no luck. I tried webforms, ATIP but no luck.
Last thing I did was email to the Scarborough office with the all the details and asked the reason for the delay. In a week I started seeing updates on my tracker for the sections and waiting started again.
After 6 months I emailed them again saying no update even after completing all checks. A week after I received a response saying
Good Day,
Thank you for your email. Please be advised we have an inventory of ceremony ready files and all ceremonies have been scheduled up until April 31, 2022. You will receive the Notice to Appear by email 1 week prior to the event.
After 10 days I got another email with the oath ceremony date.
So what I learned from this is.. we need to check and followup no matter how many days we do.