Hi craig41
We can not tell you for certain as we do not have all the facts, we would advise you to seek advice from your local Welfare Rights Organisation:
advicelocal.uk where they can take all your circumstances into consideration.
DWP cannot change your IB ESA to CB ESA, as a guess I would say you were already in receipt of CB ESA with a top up of IB ESA as you were eligible to claim the Severe Disability Premium (SDP) and EDP.
PIP is not part of the calculations for TP.
Gary
