Other schools did this too, you know
They were not the only school where this happened. My son, also received a mark of zero for this course along with along with everyone else in his class for the same reason - work was submitted to the examining board in the wrong format.
The school was Harry Carlton, in East Leake, Nottinghamshire.
We received a letter from the school explaining what had happened, but pointing out that the syllabus wasn't actually even promulgated until well after the course had started either. I'm told they've dropped the course from this year.