Less UC because increased NS ESA taken off.

I’m Appointee for my son. He was migrated over to UC last September and, because he had IR ESA and CB ESA, he was moved over to NS ESA. I received the UC statement for May today which shows that the increase in UC was taken off my son’s transitional protection...but his total amount of UC is less rather than just staying the same because his NS ESA increased and that is fully taken off the total amount of UC. This means that apart from the increased PIP my son gets he loses the rises in both UC and NS ESA which are supposed to help with increases in cost of living, and when my son’s rent goes up later this year more will be taken off his transitional protection so effectively he will lose the increase in PIP and doubtless more.

I knew this would happen so I not really asking a question but just saying that still seems very wrong especially when press articles complain about the benefits people receive.