If the vehicle has been brought back later than arranged and there is no valid reasoning for this then the Advertiser could induce a fine.
For example, if the time varies greatly from the planned one (e.g. over 5 hours), the Advertiser could possibly ask for a half-day fee.
The reason for this being that the motorhome cannot be rented out again that day, due to the cleaning and planning required between, and so this means that the Advertiser cannot rent their motorhome out for the next day - effectively losing a night of full booking fee.
If you do wish to fine for the late return, please make note of this on the Goform and enter it as an additional cost on the booking page.