EA ? - I Think I Goofed!

[Disneyhappy]

I thought that if you rent through EA, you had your choice of autos, as long as you booked intermediate. After reading some posts, I'm getting the impression that if you booked intermediate, that is the car you will get and to get a full size, you need to book a full size. When I booked our ressie, I didn't change the car class and left it at the intermediate default. We definitely will need a full size for the luggage space. Should I rebook? Any help is appreciated!