The scheme is like nothing you have met before, you pick up the car put fuel in it, all insurance, servicing, and repairs are done for you.
You dont need to do anything except when you pick up your car, make sure it is correct and what you ordered, enter your pin, sign off the paperwork and drive away.
You are insured, and if you stipulated another driver and have their driving licenses, they are insured as well.
Try asking one of the other members who have been through the process, to walk you through it, at the time of pick up.