How to add an expense account to an excess payment pop-up message in a vendor payment transaction?

How to add an expense account to an excess payment pop-up message in a vendor payment transaction?

I have this problem that when I match payment to vendor to bills and choose categorize manually, I could not anymore choose the account entry appropriate for bank charges. Instead the entries that come out are all asset accounts. 

How should I resolve this or what should I do to have in the choices - the expense account for bank fees and charges?

Thanks.