The pre-contractual information communicated to the traveller forms an integral part of the contract and may not be modified, unless the contracting parties expressly agree otherwise. The organiser or retailer shall communicate all changes to the pre-contractual information to the traveller, in a clear, comprehensible and visible manner, prior to the conclusion of the contract.
If the tour operator or retailer has not fulfilled its obligations to provide information about additional costs, fees or other charges prior to the conclusion of the contract, the passenger will not be liable for such costs, fees or other charges.
The burden of proof concerning compliance with the information obligations set out in articles L. 211-8 and L. 211-10 lies with the professional.