The security deposit is basically the same as the liability of the campervan.
The security deposit amount depends on the Insurance option you choose with your booking (799€, 399€ or 0€ for the Basic, Extended or Premium Package options respectively).
Security deposit is paid on arrival with your credit card and a pre-authorisation hold is made. This means that security deposit will be blocked on your credit card during the road trip and can be deducted up to 14 working days after drop-off - in case of any damages, traffic violation tickets or tolls.
We do however, try to return the money back to your account as soon as possible!