I sat a gcse latin module today, and there were mistakes in the questions?

they asked about events that never happened, or asked 'how did tacitus use language in this text', when it wasnt written by tacitus etc. looking back, i know i should have written a note to the examiner explaining what i umed they meant, and how i was going to answer the question, but it was a very rushed exam and i didnt have time to think. my mum has said she'll phone the exam board and complain tomorrow, but could my grades suffer in any way because of their idiocy?