Internet Expenses – wrong tax code displaying on expense form from different operating unit

Hi, I am hoping someone could be able to help again.  We use Internet Expenses in Northern Ireland Water but are in the process of setting up a new instance of Internet expenses under a different operating unit.  So that some expenses specific to the employees in the new operating unit can only be viewed by them. Our current operating unit is called WS Organisation and our new operating unit is called NIW Alpha.  Employees under the new operating unit would access Internet Expenses by using a customised Internet Expenses responsibility with the operating unit attached accordingly via the MOsecurity profile. We have set up a number of expense types for the new operating unit and they are working as expected for the new organization bringing through the expected VAT/Tax rate attached to the expense on the test system.  Please see screenshots below from operating unit NIW Alpha.