They force you to take their assurance to cancel (even though you uncheck the box) and don't display the price when you proceed to the payment, this way you do not realize it. You only realize when you receive the confirmation email with 68 more euros on the price you thought you were paying. There's no way to cancel this assurance (they support call center never pick the calls and you'll spend money on trying to contact them if you insist 0.25 /min). Was my first time with Opodo and definitely the last one