hiya
not really a similar situation, but this happened with my english language in 2016-i had gotten 56 and an a* was 55, however i think due to my coursework/controlled assessment, because i had only scraped an a* in my paper, my overall grade was still an a (so technically by paper was a* but coursework etc was a bit mixed with a B, A, and A* or smt like that)
school decided to send off my paper and i got 60 so 4 for marks and was enough to round my overall grade to an a*.
i also recently got my a level history remarked 4 marks which was enough for the next grade, and i had actually put in the paper i did better in to be remarked! i felt as though the examiner had been to generous on the one i did less better in lol so didnt want to risk it
also, if your overall grade changes, i think you get your money back as it counts as a mistake made by the exam board.
why do you want a remark? if its entry to do it at a level then probs would be a good idea to remark.
remember they can go up as well down. there have been cases where one paper goes up and another goes down or another stays the same!!
good luck xxxx
xxx
(and dont worry about it too much, once you do a levels gcses really do not matter, (unless ok you're applying to like oxbridge) no one cares what you got at gcse lol). i got an A in english lit and A* in language and came out with a B at a level. Alternatively, friends got a* in lit and also got B's at a level.