Kind of like rental companies advertising unlimited mileage then when you actually read the agreement you a restricted to certain states. Basically read your contract and remember what they tell you does not count.
Last two times I rented a car I added my GF as a driver. Both times when I picked up the rental they told me I had to pay extra. I referred them to their contract and they changed their mind. Contract says no charge for spouse or domestic partner in same household. I wonder how much extra $$ they have made from this.