Case when statement gives type mismatch
 

I am relatively new to this, so maybe I am overlooking something
simple. I am trying to run some queries via VB and can get most of
them to work. However, when I use a Case when statment I get a type
missmatch error. After copying the debug.print to my query analyzer
or directly into Microsoft query, I don't have a problem. It's only
when I run if from VB. Here is my code, if anyone can please help:

stsql = "Set NoCount on " & _
"Select " & _
"CM.Certmainseqno , RefDate = CM.activitydate " & _
"Into #POL from DayOld..Commtrans as CM " & _
"where CM.activitydate = '06/01/04' and CM.commpayee =
'33816230' " & _
"Set NoCount Off " & _
"Select Test = case when RefDate = '06/03/04' then RefDate
else GetDate() end " & _
"From #Pol "
With ActiveSheet.QueryTables.Add(Connection:="ODBC;DSN= Warehouse;Description=DataWarehouse
Summary Database;DATABASE=Warehouse;UseProcForPrepare=0" _
, Destination:=Range("A1"))
.CommandText = Array( _
stsql)
.Name = "GetPols"
.FieldNames = True
.RowNumbers = False
.FillAdjacentFormulas = False
.PreserveFormatting = True
.RefreshOnFileOpen = False
.BackgroundQuery = True
.RefreshStyle = xlInsertDeleteCells
.SavePassword = True
.SaveData = True
.AdjustColumnWidth = True
.RefreshPeriod = 0
.PreserveColumnInfo = True
.Refresh BackgroundQuery:=False
End With

Everything works fine if I do not include the case statement. All
records are returned if if have the last piece as select * from #Pol.

Any help would be appreciated.

Case when statement gives type mismatch
 

Case when statement gives type mismatch