bit cheeky posting in primary ed (more likely to get a response hopefully!) but bear with me.
I have a 12yo DSD, just finished yr7. always struggled massively with reading (her twin flourished with phonics though) and now, while she does love her new school and makes good effort, she still really shies away from literacy.
it breaks my heart, and DH's obviously, particularly as he did go for custody and we feel she'd have been much better off education-wise with us. she's so clever but can't prove it at all. she got some help in primary although dyslexia tests were inconclusive, but had a scribe/reader for SATs, ended up with great results which were then too good to qualify for extra help in secondary! FFS 
no way can we (or her mum) afford any private help/tests. I've had a look at some of the books recommended on here, toe by toe etc (I know some are controversial) but they all seem to say it must be done daily. we can't do this as she lives with her mum, we see her every week or two but it's harder to fit in now as she's tired from school.
I'd be more than willing to pay for one of these books and use it here (I've also read up a lot on phonics for when my kids are older) but we know such a scheme would not be used at home. her mum has no faith in her, she's written her off (when DSD said she wanted to be a vet, she told her that she's not clever enough to be one, who says that to their own child?
:() and generally doesn't give a monkeys about the kids' education - as long as they're not getting in trouble (which they don't) she's not bothered. even if DSD was willing to put the practice in to improve, she wouldn't get any help at home, she never has.
she's hopefully staying with us for a week this summer, DH will mostly be at work but I'm at home with my 2 littluns anyway. I don't want to pressure her into schooly stuff but it would be good if I could help. it was a bit easier at primary as the DSDs were more willing to do extra stuff, workbooks etc, but now they don't. DSD does enjoy school, especially science ATM, but I feel that as she gets older her lack of ability in literacy will slow her progress and demotivate her all over again :(
I'd be so grateful for any advice, I really don't know what to do :(