She is currently on a course to get her onto university. Should the college be doing things to help her?
She needs to get in touch with her College and find out what help they can give her. If she was at University she would need to get in touch with the Disability and Dyslexia service on there campus.
I would be a bit suprised if they were unable to offer any help, I can only speak from my previous job.
I do know that some Colleges help students with Dyslexia since a colleague use to provide support in her last job which was at one of the Colleges in Cardiff.
Best for her to talk with her parents and have them all go down with her to the College and speak to someone about it.