DSA support is separate to the univeristy support, they always say just because you are receiving DSA it doesn't mean that the extra support in terms of the uni will happen automatically.
She needs to have a meeting with her university Disabiltiy service, they are often called disability advisors, they can make her an LSP/ISP and that will have details on exam arrangements, timetabling (if relevant), teaching arrangements etc.g lecture material 24h before etc, not asking questions on the spot, arrangements for things like coursework, presentations etc. They'll likely have extra library induction and study support workshops for disabled students as well. They'll have plenty of information on the website or the university specific portal - so have a good look at everything on there, get her to follow up on the form she did, they may have sent a generic email she has missed. If not they'll be information on the website/student portal with how to contact them to get support in place.
DSA stuff is seperate, so has she applied for that? If so has she had her needs assessment to get the software etc. She needs to apply through student finance website initially, it will be on her home page, that involves uploading evidence initially, then they asses it and send a DSA1 letter saying whether they've approved her application or not. After that they send her a link to book a needs assessment, that isn't a test or anything, as she's already gotten approved. That's where they'll decide software things, a specialist study tutor, equipment to record lectures, assistive technology software etc.
Then at the end they ask her if she wants this sent to the univeristy, make sure she consents or otherwise they won't send it. They then send the report to student finance, then she'll get a DSA2 letter from SFE saying what they've approved and then she just needs to liase with them as they send her the equipment. It's actually quite simple but the process has quite a few steps.
I'd be getting her to 'bother them' as I'm sure you know, universities have good support but they expect you to reach out to them somewhat. Chase them, you have to do the research on their website, the information will be available. She needs to reach out and have a meeting with a disability advisor from the disability service and craft the LSP so that all stage teaching her etc can see it. If she doesn't bother them, they won't reach out to her so she needs to make sure she does ask for the support she needs so that she can be on a level palying field, and be able to do as well as she can. What subject is she studying?