B11:B14 are drop downs referencing the same list.
If one of the items in the list is chosen in B11, it leave B12:B14 as selectable for the same item. If any of the other 16 items in the list is chosen for B11, then B12:B14 are locked, and C11:C14 are blacked out. I found VBA code to lock and unlock the cells, but what do I put in the ELSEIF line to say NOT that value? I found this:

Private Sub Worksheet_Change(ByVal Target As Range)
If Range("A1") = "Accepting" Then
Range("B1:B4").Locked = False
ElseIf Range("A1") = "Refusing" Then
Range("B1:B4").Locked = True
End If
End Sub

But I want it to be "NOT Accepting" in the ELSEIF, instead of "Refusing" Or =/= "Accepting"...
Then I want to do the same for ranges B15:B18, B19:B22, B23:B26, F11:F14, F15:F18, F19:F22, and F23:F26.

I feel like it's a SIMPLE answer and I'm just overthinking it...