PayPal Payment and opening a claim
The booking fee of 10% is the payment for using the portal. It is not part of the payment for the flight. You accept and agree that the booking fee of 10% cannot be claimed refunded by PayPal or creditcard issuers on the reason of service not delivered or service not as described.
Cancellations of single seat bookings (1 to 4 passengers), on sightseeing tours are not accepted if the booking is confirmed. At no-show or cancellation by client, he accepts responsibility for full payment.