GCSE review of marking (re-mark) - your experiences.

I've just asked for a remark today (had massive problems getting in contact with the right teachers at DS's school).
He was given a U in food prep despite having distinction level coursework. (It was a GCSE when it started in yr10 but the school decided to change it to another qualification in yr11 we were told it wouldn't affect the grade but the qual would serve them better)
This morning I was told he was 1 mark off the pass threshold for the exam which was 21 despite scoring in the 50s during mocks.
Another part of the exam he was given an X and I had previously been told on Monday that the school entered them for the wrong thing and it had been too late to change it, but today that was denied. But I've never heard of an X being given as a mark... Has anyone else?
I'm seriously furious with his school.

Had DS2’s maths remarked, he was 1 Mark off a 6. Came back that he was actually 3 marks off a 6. Have heard anecdotally of course, that very few remarks have resulted in upward grade adjustments this year.

Have finally decided to go for a review of marking for two papers today.

We're having one English Language paper looked at. DS is 1 mark off an 8 overall. We requested the scripts back first and his teacher reviewed them. He agreed with the marking on one of the papers but felt there were a couple of questions on the other one where they could be worth a couple more marks in his opinion. So we're having that paper reviewed. Have a buffer of 9 marks before he'd drop a grade but I'm still nervous.

Then in Biology DS is 1 mark off a 7. He would need to drop 18 marks to go down to a 5. So we're having his lowest scoring paper reviewed there to see if he can get that extra mark.

Am still nervous though. I'll feel dreadful if they go down a grade.

@LongIslandIcedSummer - Which subject did you have the remark for OCR for? DS is 4 marks off an 8 in History but I thought 4 marks was too far off really to try. Maybe I was wrong.

We are still waiting for English Language Aqa. 3 marks off a 4. Not hopeful but fingers crossed.

clopper similar with ds - grade 8s for essay subjects including English lit, 7s for everything else, but a 5 for English lang. School has recommended remark as he was only one mark off a 6, planning to put the form/money in today.

No didn’t get the paper back. She has gone onto college so she had the grades. It really was a surprise to have so low a grade. Also the down graded section had a reviewer comment which was mistyped / spelled, so how careful was the checking? They didn’t even check their own work!

English language paper one just back. Needed one mark for a six. So one mark found on the straightforward first section but another section downgraded by 2! So another mark lost. I’m just hoping that the other paper doesn’t lose too many now. Quite a money spinner for AQA. It’s so far off her usual writing grade of 8. I just find it strange that she got high grades in heavy essay type subjects yet her English language is deemed average. A few people in her girls grammar school have failed English!