you guys are overreacting. it's just a customer satisfaction survey from the looks of it. i recently rented a car from enterprise. i didn't answer, but it makes sense to me, as they specifically asked me "would you say that you are very satisfied with the service we provided with you here?" and I said "uhhh.. yeah." so, they were obviously setting me up for the eventual phone call. relax, don't answer it if you don't want, and that's it.