It's up to camper owners to decide how much to charge as a deposit. However, as a guideline, we recommend charging the same amount as the insurance excess due for your vehicle in the event of a claim.
Here's an example:
Excess for your camper (fully comprehensive insurance): £1,500
Recommended deposit: £1,500
This means that if there is an insurance claim, you have access to the full excess immediately. You can find the information about the excess amount in the insurance policy for your camper.