Userelationship on a calculated column with Filter issue

Anonymous 

Apologies since I can't check if it works since the sample you provided does not have the fields you want to filter by, but give this a try:

Services attended (more filters) =
VAR CaseID =
    CALCULATETABLE ( 
        VALUES ( 'Table'[Case_id] ), 
         'Table'[Service_code] = "Stage1", 
         'Table'[Service_status] IN { "Closed", "Complete" }
    )
VAR ServiceCaseID =
    CALCULATETABLE (
        VALUES ( 'Table'[Service_case_id] ), 
          'Table'[Service_code] = "Stage1",
          'Table'[Service_status] IN { "Closed", "Complete" }
    )
VAR FiltTable =
    INTERSECT ( CaseID, ServiceCaseID )

RETURN
    CALCULATE (
        DISTINCTCOUNT ( 'Table'[Client_id] ),
        USERELATIONSHIP ( 'Table'[Service_attended_date], Datedim[Date] ),
        FiltTable
    )