This is not a debit, but a reservation. To ensure you can pay for your trip, we reserve an amount on your card at the start of the rental. This amount varies depending on the partner (for cars, for example, it's currently €90). When we receive the rental invoice, the actual amount will be charged. If the invoice amount is higher, a subsequent booking will be made using the same payment method. If the actual amount is lower, the difference will be released.