Sub ConvertColI()
Dim i As Long
Application.ScreenUpdating = False
For i = 1 To Range("H" & Rows.Count).End(3).Row
Select Case Left(Range("H" & i).Value, 1)
Case "6": Range("I" & i).Value = "Cellphone Repair"
Case "7": Range("I" & i).Value = "Metro PCS"
Case "8": Range("I" & i).Value = "Cricket"
Case Else
Select Case Range("H" & i).Value
Case "WR_BALAJI_OTHER", "WR_BALAJI_CRICKET"
Range("I" & i).Value = "Cricket"
End Select
End Select
Next
Application.ScreenUpdating = True
End Sub