In the event of a problem, we invite you to start your reservation again. If after several attempts, you still encounter difficulties, you could be one of the few cases below: Case 1: You are using Internet Explorer. We strongly recommend changing your browser and going to the site with Chrome or Safari (Internet Explorer is no longer updated since 2016 - RIP). Case n ° 2: Your card is declined. Try another card and if the problem persists, unfortunately, you will have to contact your banker. Case 3: Your basket has expired. You may have spent more than 10 minutes before validating the payment. In this case, you should have seen the message “ Your basket is expired ”. Please try the reservation again. If the problem persists anyway, contact us via the contact page or online chat.