I.-The traveller may cancel the contract at any time before the start of the trip or holiday. In this case, the vendor may require the traveller to pay appropriate and justifiable cancellation costs. The contract may stipulate reasonable standard cancellation costs, calculated on the basis of the date of cancellation of the contract before the start of the trip or holiday and the cost savings and income expected as a result of the travel services concerned being made available again. In the absence of a standard cancellation fee, the amount of the cancellation fee corresponds to the price minus the cost savings and income realised as a result of the travel services being made available again. At the request of the traveller, the vendor will justify the amount of the cancellation costs.
II.-The traveller has the right to cancel the contract before the start of the journey or holiday without paying cancellation costs if exceptional and unavoidable circumstances, occurring at the place of destination or in the immediate vicinity thereof, have a significant impact on the performance of the contract or on the transport of passengers to the place of destination. In this case, the passenger is entitled to a full refund of payments made, but not to additional compensation.
III.-The organiser or retailer may cancel the contract and refund the passenger in full of payments made, but is not liable for additional compensation, if :
1° The number of persons registered for the journey or holiday is less than the minimum number specified in the contract and the vendor notifies the traveller of the cancellation of the contract within the period specified in the contract, but no later than:
twenty days before the start of the trip or holiday in the case of trips lasting more than six days;
-seven days before the start of the trip or holiday in the case of trips lasting between two and six days;
-48 hours before the start of the trip or holiday in the case of trips lasting no more than two days;
or
2° The organiser or retailer is prevented from performing the contract due to exceptional and unavoidable circumstances and notifies the traveller of the cancellation of the contract as soon as possible before the start of the journey or stay.