Sad to see a lot of similar reviews online, must be almost impossible to not get ripped off by this company. If you're forced to hire a vehicle from Sixt, ignore any of their claims that your existing insurance won't cover the vehicle - this is completely untrue and a scam. Hired a SixT car on Corsica and unfortunately was led on on by their dishonesty, don't expect any help or correspondence despite how many attempts you make - once the vehicle is returned they won't even bother communicating. Avoid at all costs