VBA pulling unique results into combobox in userform

All,

I am having a problem getting the unique values from a pivot table in combobox (cbMU) based on list chosen from combobox 1 (cbTOG)

right now the codes work for populating both comboxes but the 2nd combobox fills with all the values for MU instead of the unique ones associated to the list in cbTOG
For example:
cbTOG has values like 69, 70, 100, 111, 112, 312, 631, 812, 900 and so one
cbMU has values like 100, 118, 124, 615, 812, 312, and so one

If I chose under cbTOG the value 69, then cbMU should have 615.
If I chose under cbTOG the value 113, then cbMU should show 111, 113, 131

code that fills the combobox 1 aka cbTOG:

Private Sub UserForm_Initialize()

Unload ufLoader

 Dim pvtTable As PivotTable
 Dim vData As Variant
 Dim sheet As Worksheet
 Dim pt As PivotTable
 Dim ptField As PivotField
 Dim item As PivotItem
 Dim index As Integer
 
 Set sheet = ThisWorkbook.Worksheets("Combined")
     Set pt = sheet.PivotTables("TOGPivot")

        Set ptField = pt.PivotFields("TOG")
            
                index = 1
                 For Each item In ptField.PivotItems
                     Me.cbTOG.AddItem item.Name
                 Next item
                Me.cbTOG.AddItem "(All)"
     Set ptField = Nothing

 End Sub

the userform initialize fills cbTOG correctly

Private Sub cbTOG_Change()

Dim sheet As Worksheet
Dim pt As PivotTable
Dim ptField As PivotField

 Set sheet = ThisWorkbook.Worksheets("Combined")
     Set pt = sheet.PivotTables("TOGPivot")
     Set ptField = pt.PivotFields("MU")

                For Each item In ptField.PivotItems
                     Me.cbMU.AddItem item.Name
                Next item


                 Me.cbMU.AddItem "(All)"

     Set ptField = Nothing

End Sub

the cbTOG_change populates with the MU numbers but when I choose one of the TOG numbers the MU numbers do not change,
I don't receive an error either so the code populates both but the cbMU needs to populate with results like what i referred to in the values example.

I have a photo of what is in the pivot table for reference. can anyone tell me what I am missing in my code?
I know I may have to supply the workbook but that may take a bit for me to slim it down to what I can divulge since it has company data that I cannot share so if asked I will try and supply a working sample but I will also haev to remove many pieces of code that are used in multiple sheets already.

If it helps; the pivot table pulls data from the same sheet called 'combined' and the TOG values are in column H and the MU values are in column I