I need to deliver the car at six o'clock in the morning, but it is scheduled to open at nine o'clock and my flight will be at eight. what should I do?

Call they probably have an attendant their early for drop offs.

When we dropped a car off at mco in May they had one big area where you returned rentals cars for several different companies, and they just give you a receipt. We dropped ours off before 7am

Don't ever rent a at offtbem again they robbod us blind took nearly an extra five hundred poind off us when we took our back don't worry they have you bank details just leave it in the lot and drop keys through keyhole personally I think the robbing gits should be closed down