Dollar, Dollar Rent A Car Misrepresentation Philadelphia Pennsylvania

For our trip to the Phila. area on January 19, 2018, I ordered, through Southwest Airlines, a MID-SIZED automobile from Dollar.com. They indicated that I would receive a car similar to the Dodge Avenger which is a mid-sized auto. I received a Toyota Corolla, listed by Toyota and auto websites such as Edmunds, as a COMPACT vehicle. Dollar insists that this is their idea of a mid-sized vehicle and refused to remedy the issue. I had to endure a smaller, under powered vehicle. I believe I am entitled a significant refund for this misrepresentation and the lack of comfort we had to endure for the trip. Their representative could not explain how the mid-sized Dodge Avenger is the same category as the Toyota Corolla.