As an intermediary, Click&Boat charges the owners the amount of its commission.
You can download the invoice for this commission at any time from the "My bookings" section (and possibly "History" if the rental has already happened).
This invoice corresponds to the amount of the Click&Boat commission, including VAT.
As the owner, it is up to you to issue the invoice for the total amount of the rental (including commission, since we then invoice you for it) to your renter.
Click&Boat is not a part of the contract and only acts as an intermediary in the booking process.