Kod:
Private Sub Açılan_Kutu17_AfterUpdate()
If Açılan_Kutu17.Value = "Vodafone" Then
If Metin36.Text > 5399999999# And Metin36.Text < 5500000000# Then
Metin83.Value = "DIP"
Else
Metin83.Value = ""
End If
Else
Metin83.Value = ""
End If
End Sub