Esa benefit rate query

i just recently got my award letter and it says i am on contributions based esa - support group

it says i will get altogether £110 but i am slightly confused

i have just read up on benefit rates for esa and it says that because i am in the support group, i should be given an extra £14.80 per week enhanced disability premium but it does not mention this in my award letter

should i fone dwp over this?

thanks

:o