Thank you for your reply! I still need to talk to the Headteacher (only spoke to deputy) who will probably know if the manual re-checking of the paper is possible. I understand I can at least request to see the test itself- then again this is based on what I have heard from other parents.
The error would stem from the poorly erased signs, circles and marked answers which were then rejected by my dd. This can cause the computer to "see" two answers instead of one and reject the whole thing as wrong. Presumably, a human can see what is hastily erased and what is actually marked as an answer. Just to clarify: do you mean I can ask the LEA for a remarking, and if I get formally refused, then I can appeal? I was given the impression I need to appeal now to have it remarked anyway.
Thanks in advance for what further comments you may have.