I am an accredited examiner for the ROC-A in Canada. I specifically give the exam to Air cadets, so I have not encountered your situation before, but recently my candidates have been getting their certificates in the mail in a week or two. I do the exams online via zoom.
The Government Department is now called Innovation Science and Economic Development, Canada. (ISED).
The study guide is here:
https://www.ic.gc.ca/eic/site/smt-gs...g/sf01397.html
All the info I have to go by is here:
https://www.ic.gc.ca/eic/site/smt-gs...g/sf01018.html
Good luck!