Online GCSE's and A'Levels

My daughter left year 11 last year (June 2023).

She now would like to try to study for Maths and English GCSE - but on line and at her own pace.  She will not go back to a classroom setting or interact with a classroom online learning style. 

She would prefer a self led style study where she will work through the topics and receive feedback in written form. 

Does such a thing exist? I have found lots of IGCSE type companies on the internet but I do not know which are reputable, autistic friendly format, the correct qualification.

Also they are quite costly, do I use her PIP to pay for it or is there somewhere to get funding?

Thanks - any help much appreciated.