It is highly recommended that all users of our integration module Prestashop Checkout with Bongo upgrade to the latest version 1.0.9.
This update resolves a problem printing invoices. Result of an error when printing, the system assumes that all payments had been made through Bongo Checkout. As a result of the error the bills not been paid through this gateway show negative amounts in shipping costs.
Version 1.0.9 fixes this issue.