Cascade combobox avec visu listbox

Dim f
Private Sub UserForm_Initialize()
  Set f = Sheets("finances")
  Set mondico = CreateObject("Scripting.Dictionary")
  For Each C In Range("O3:O" & [O65000].End(xlUp).Row)
    mondico(C.Value) = ""
  Next C
  temp = mondico.keys
  Call Tri(temp, LBound(temp), UBound(temp))
  Me.ComboBox1.List = temp
End Sub

Private Sub ComboBox1_click()
  Me.ComboBox2.Clear
  Me.ComboBox3.Clear
  Me.ListBox1.Clear
  Set mondico = CreateObject("Scripting.Dictionary")
  For Each C In Range("O3:O" & [O65000].End(xlUp).Row)
    If C = Me.ComboBox1 Then mondico(C.Offset(0, 1).Value) = ""
  Next C
  temp = mondico.keys
  Call Tri(temp, LBound(temp), UBound(temp))
  Me.ComboBox2.List = temp
End Sub

Private Sub ComboBox2_click()
  Me.ComboBox3.Clear
  Me.ListBox1.Clear
  Set mondico = CreateObject("Scripting.Dictionary")
  For Each C In Range("D3:D" & [D65000].End(xlUp).Row)
    If C.Offset(, 11) = Me.ComboBox1 And C.Offset(, 12) = Me.ComboBox2 Then mondico(C.Value) = ""
  Next C
  temp = mondico.keys
  Call Tri(temp, LBound(temp), UBound(temp))
  Me.ComboBox3.List = temp
End Sub

Private Sub ComboBox3_click()
  Me.ListBox1.Clear
  i = 0
  For Each C In Range("J3:J" & [J65000].End(xlUp).Row)
    If C.Offset(, 5) = Me.ComboBox1 And C.Offset(, 6) = Me.ComboBox2 And C.Offset(, -6).Value = CDate(Me.ComboBox3) Then
      Me.ListBox1.AddItem C
      Me.ListBox1.List(i, 1) = C.Offset(, 1)
      i = i + 1
    End If
  Next C
End Sub

Sub Tri(a, gauc, droi) ' Quick sort
  ref = a((gauc + droi) \ 2)
  g = gauc: d = droi
  Do
    Do While a(g) < ref: g = g + 1: Loop
    Do While ref < a(d): d = d - 1: Loop
      If g <= d Then
        temp = a(g): a(g) = a(d): a(d) = temp
        g = g + 1: d = d - 1
      End If
    Loop While g <= d
    If g < droi Then Call Tri(a, g, droi)
    If gauc < d Then Call Tri(a, gauc, d)
End Sub