Hi Woodelf - knowing about your vision problem, would contacting the "Disability Answer Desk" be any good?
This links to the main page -
https://tinyurl.com/y8mk5426
Scrolling down gets to a Freephone number for "Windows and Office accessibility support" - 0800 026 0584 - they're open 9 am to 9 pm Monday to Friday. If they're not exactly who you need, they may be able to point you to the right people.
There are other clickable links on the main page, but without knowing what you need help with, it's hard to point to the right one.
Come back to us if you need to, hope you get sorted soon - smile