DD is bilingual, native speaker of a language A level she took this year. She already had an A in the first part taken last year. For some reason she appears to have scored only 50/60 in the oral section bringing her grade down from a predicted A to an A (which I appreciate is a good result). Looking at the mark scheme neither she nor I can see how she could have lost so many marks. She felt the exam went well so she did actually speak! And even if she spouted absolute rubbish - which I doubt- she would still have got full marks for language intonation etc. Listening and reading comprehension etc are in another module. She got an A in English so there is no indication she is hampered by her bilingualism.
Is it worth asking for a remark? It will probably not impact on her university place - she is taking a gap year- as her other results are good enough.