Short changed on the car I rented.

I asked for an intermediate sized car, as I just moved to the country and had a lot of luggage with me. I asked for a larger car because of my luggage, and was promised a Toyota Corolla or similar. Hitch gave me a Mazda Demio, which BARELY fit my luggage. The keyless entry didn't work, and they were not very accommodating at pick up. I feel like I was downgraded on my rental, the car had no trunk space, and was SMALLER than I paid for. I feel like I paid much more than I should have for that car.