Hi and welcome to the community, @Jamesmiller2020
I'm really sorry to hear that. Our Change My Account in The Case of a Life Event help page says:
'If you’re diagnosed with an illness or disability you believe will impact your ability to use or pay for your service in any way, please contact us and let us know.'
There is some contact information on that page that I linked too. That team will do their best to help you.
Chris
