It's not to do with loss or damage why they are refusing - it's because it would be 'unfair' for him to use a laptop when the others aren't.
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I KNOW It's a long shot trying to get a statement with a private EP report, but due to the school actively blocking parents with SEN from trying to get one, to the point of lying about NC levels (the local Secondary SeCo has HUGE issues with this - she gets a DC in Y7 that she is told is a 3a in everything, so only a bit behind,then when SHE assesses them, they are on level 1 and are functionally illiterate and innumerate...), and hiding necessary paperwork, refusing to even ALLOW DC's to SEE the LEA EP etc.
It's been an ongoing issue with the school, and the ONLY reason his year group has so many SEN DC in is because it is such a huge year that there IS nowhere else to move them to. In every other year, 99% of DC with SEN have been removed from the school. I PERSONALLY know of 20+ parents who have moved their DC's due to this. And at least 12 of them have got full statements since they have left this school, when their DC's were on SA if they were 'lucky'.
It's just more of an issue in this year group as moving the DC is not possible.
There IS no way of getting the school to allow him to have a laptop that my Ex has paid for, because we have been asking since Y1, they just WON'T allow it. They have even told me that they will take it off him and give it back to me at the end of the day...
I asked the SenCo for an URGENT appointment on Monday. She only works Mon, Tue & Wed. I still have no appointment...
I can guarantee that she will be 'unavailable' until the end of term, and I will have no way of moving things further until AFTER the holidays.
I have aske dhis teacher to tell me which areas of KNOWLEDGE he is struggling with, but she says she is 'too busy' to tell me. I only want to know so that I can work on it over the holidays with him. 
The school is just so damn bloody obstructive, and it won't even START getting fixed until he gets to Secondary, but the Secondary will be overwhelmed with SO many SEN DC that haven't been helped appropriately that they won't be able to offer him the same help they did my DD, who came through the same school, but was in a yr group of 60 with about 6/7 DC who needed that amount of help. In DS2's yr, he will be going up with a yr group of 90, with 20+ that will need that level of help...just from ONE primary.
I can see the Secondary SenCo kicking off then, but that doesn't help for the next 3 years, does it?!