I have recently migrated to UC on July 3rd 2025.
I received a letter from the DWP stating that my contribution based ESA will change to NEW STYLE ESA! I wasn't even claiming contributions based ESA, I was in the support group.
I have been advised earlier that it relates to a period from 2004/2005 when I was employed. This is extremely confusing for me because I have always received ( Income Based ESA )