Trips rarely progress as planned. And you may require several additional services at an airport – an air con unit, a ground power unit, pushback, additional catering, airport fees not covered in the original estimate etc. Service Providers will raise supplementary invoices on the Platform for these services and the system will automatically deduct funds from your Available Balance when the Captain signs off on these additional expenses.
No payments will be deducted without valid invoices. And if you feel that any invoice has a discrepancy you can always dispute it.