Council tax

Hi can anyone point me in the right( not sure if I can ask this question on here) , direction on advising someone on council tax support, they have just been sent a bill for 2024 /2025
They have to pay over 100 pounds a month now but they have always been exempt due to illness and unemployment, also awaiting a pip review as if that isn't stressful enough for him
There's no way they'll be able to pay so has the system changed. I know there's already local council tax support scheme taken off the bill which roughly brings it to half the total bill.
Surely this is another kick in the teeth for people with disabilities.

Thanks for the help 👍
Sorry for the question but I wasn't sure if I could post on here