If you all had Sinilar wrong answers as you
1) it was wrong on the most obvious google link
Or 2( someone making notes in the lecture got it wrong and a few people shared their notes
Then neither of those are collusion? I sent sone other students before exams some notes on stuff that was not captured by the online recording (things written on the screen as an example) but that is allowed? But yes if I screwed up then possibly we’d all make sane mistake.
I think you need union help to lay out a co-hesive defence as it’s still unclear whether it’s just they don’t believe you over some actual collusion in exam occurring.