When we picked up the car, we clearly told the staff that we had already purchased the additional full insurance and did not need to buy it again. The staff wrote the rental agreement very poorly and we couldn't make out the details. When returning the car, we were informed that we had been charged for the full insurance. They told us to call their service phone number to resolve the issue, as such matters are not handled on site. Since we were in a hurry to catch a flight, we had no choice but to accept. Very unsatisfied, will not rent from this company again. Will prefer to rent from bigger companies like Hertz, even if it costs more.