That seems quite strange.
My DD is dyslexic and DID qualify for extra time and use of a laptop. Her working memory score is 7th centile compared with 98th centile for VR and NVR.
She doesn't have an EHCP - but her SEN issues have been incredibly obvious since Y1 at school and have caused very significant and ongoing difficulties over the years. Staff at Primary picked up her dyslexia and arranged all the testing as soon as she was old enough for the tests to be reliable. She's been tested several times since with identical results.
The criteria have now changed from requiring only one standardised score under 84, to now requiring two. DD's processing speed is literally one mark outside the qualifying score... so it looks like she may well not automatically get the extra 25% time anymore despite having extremely obvious difficulties that have always led to her achieving well below her potential.
I would be very surprised that your DD had low enough scores in two areas to qualify and yet you/she/teachers have not picked up on this before now.
You normally need to demonstrate over a period of years that things like laptop use and extra time are the child's 'normal way of working' and it is almost never put in place just before exams.
I would be asking school exactly how they intend to swing this before parting with any money.
The relevant bit from the Access Arrangements doc is:
So as not to give an unfair advantage, Part 2 of Form 8 must confirm that the
candidate has at least:
• two below average standardised scores of 84 or less; or
• one below average standardised score of 84 or less and one low average
standardised score (85-89).
In either scenario, the two standardised scores must relate to two different areas of
speed of working as below:
• speed of reading and speed of writing; or
• speed of reading and cognitive processing; or
• speed of writing and cognitive processing; or
• two different areas of cognitive processing which have a substantial and
long-term adverse effect on speed of working.
An assessment of mathematical processing may be used as one of the two required measures for 25% extra time in Mathematics examinations only. The mathematical processing score must be below average. An assessment of mathematical processing cannot contribute to the evidence for 25% extra time in examinations other than Mathematics.
www.jcq.org.uk/wp-content/uploads/2021/08/AA_regs_21-22_v11.pdf