This issue is most often caused when the airport Curbside and Meet & Greet Pick Up fees are set to $0, and are mapped to the flat rate. When a change is made to the itinerary, the flat rate is then overwritten to $0.
It is easily fixed by a small adjustment.
- Go to My Office
- Company Setting Tab
- Company Preferences
- Follow the steps in this video: https://www.screencast.com/t/i0kvmMhW