UC LCWRA and Severe Disability criteria

Can anyone tell me more about this? I get full rate daily living and low rate mobility for PIP, on a 6 year award. I also get UC LCWRA, and have read about next years increases and wondered if I may qualify?

I did used to get Severe Disability Premium with ESA, is that related? Or is this different?

Thanks.

The benefit uprating amounts, apparently they're going up if we have severe disabilities, but it's frozen if we don't?