The rental car company (Firefly rental car) tricked me into buying a insurance I had no need of, after Cartrawler had sold me one in advance. I was never informed at the rental desk about any extra insurance. I had in advance payed Cartrawler for a premium insurance, and thereby I was in no need of another one. The clerk at the counter circled out all the 0 EUR outstanding costs, and never mentioned anything about a insurance. While in the rental agreement the costs of it were hidden by using abbreviations and small text. After the rental they withdrew over 200 EUR (!) for a 7-day insurance, and since I signed the rental agreement, neither Cartrawler or Firefly are willing to refund this amount. In my eyes this is fraud put together by both companies!