Salesman used high pressure sales to get us into this into this agreement, I waited in the car and she wouldn't leave until I agreed. Our campground is always booked when we want to go there, we've only camped there once in over three years. And there is a $535 annual camping fee. This seems quite expensive for a once a year camping trip. We want out of this agreement and we want out money back. What can we do to make this happen?