Have you tried emailing the IRCC office in London?
ldnimmigration@international.gc.ca
I got silence as a reply but the first stage letter did arrive 12 hours after emailing.
I'm still not that happy, after my daughter sent webforms which have received no responsse and it's now 14 weeks, when the estimated processing time was 8 weeks and the total processing time for CAQ and study permit is now 27 weeks.
GCMS notes will arrive soon.
Her classes cannot be done online fully and she has a scholarship for this semester.