iresa support group moved to uc now have duel contribution esa and uc claim ?

i was on iresa for 10 yrs i think n i transfered through migration to universal credit last month ,now i have a 600 pound deduction each month on uc because it says im getting this new new style contribution esa in a duel claim the ladyfrom esa dwp said ,after being moved from iresa ?i asked for reasons why this has happened n will it stop other things like my free dental in scotland n other things like warm home payment etc , i asked for further explanation of the situation n ill get a call within next week ,has anybody else heard of this situation ,of duel cbesa n uc ,from moving from income related employment support allowance support group ,i also get low rate care adp ,the agent on my uc journal said he doesnt know why it was desided i get cbesa duel claim as ull need call the esa helpline he said ,and they couldnt explain why either ,so its affecting my health now n aniety as im expecting a call sometime maybe this week ,who knows when ,ill need take my phone to even the toilet now ,waiting if they call