Is it Possible to use AWT and EBTax in same invoice/PO, but different lines

Dear All

We have a vendor, who provide services that are AWT related and also VAT related. So when he submit invoice, invoice will have lines that is WHT applicable and some lines will have VAT applicable. How do we process this, given the fact that AWT is managed by AP and VAT is managed by EBTax

When i tried it manually, system calculated WHT for the WHT line, but VAT was calculated for all lines including WHT line and VAT line of expenses..

Has any one come across this situation? is this possible to achieve in any ways? Splitting the invoice is not an option