I may be over thinking this but this scenario doesn’t seem to make sense. Cl was migrated from IB to CB ESA and IR ESA some while ago and has just had a payment of arrears due because of maladministration during the migration (one of many!)
The cl says that they have letters to show ongoing payments or CB ESA and IR ESA including the SDP and EDP.
All well and good but the cl claimed UC some time ago, was paid UC for one AP and UC then ceased over Notional Capital. Surely the IR ESA claim was abolished by the UC claim and should not be in payment?