Recently on business travel in Italy I rented a car through National that I thought I would return after a few days. The rental needed to be extended on two additional occassions during the two week trip. The National subsidiary, "Locauto Rent", invoiced my Amex separately for multiple expenses related to the rental. The issue is that the final invoice details the total expense, but doesn't directly match any of the individual invoiced amounts against my Amex. Looking for advice on how to proceed forward and clear the expense.
