Hi Angelf
The term Case Manager is a DWP euphemism. They are not actually managers but Administrative Officers based in large UC Service Centres such as Pynes Hill Exeter.
So your sister can ask for the name of the Case Manager dealing with her claim via a UC Journal message. I expect that the first name only will be provided. To do this choose as recipient A Payment and then the message will be routed to the Case Manager.
David
David
Nothing on this board constitutes legal advice - always consult a professional about specific problems