Don't send Natis docs for interlink trailers

Every time Wesbank finances an interlink trailer, when the account is settled, they only send one Natis. Even though there are two Natis documents attached to an interlink trailer. This has happened multiple times. It is then with immense struggle to try and get them to understand that there is still one Natis outstanding, since their system shows that they did send a Natis. This is unacceptable for a big Financier to not be able to dispatch the correct documents