I was 2 marks off a B in my AS Politics and Government paper. We sent it for a remark, and it came back with exactly the same marks. It did seem unfair to me, because it wasn't like I was 5 marks off a B, but I was 2 marks and it would have only taken finding one mark in each paper for my grade to go up to a B.
I know remarks have now changed, but I don't understand how it will work for essay subjects like Politics or English where you have to present an argument and interpretation, and one examiner can disagree with the interpretation or argument whilst another can agree or accept it. As much as they say you have to be able to back it up, I had a teacher last year tell me an interpretation of mine (with evidence from the text!) was wrong and not supported in the text, despite the interpretation I used being one that another teacher had told me to add in as they felt it was a very strong interpretation and the text evidence strongly supported it.
Similarly, how will you prove a marking error in an opinion/interpretation/argument based subject? I can understand it's much easier in subjects where there is a simple right or wrong answer, but not in subjects where there isn't necessarily right or wrong, how would you prove that an error has been made in the marking? I don't understand it really, tbh.