I wish I had read all the negative reviews before booking a rental car with them. Booked online through Booking.com, a car with Sixt at London Victoria station. I had fully pre-paid for the rental and also taken a comprehensive insurance (to cover any extra costs). When arrived at the desk, first of all, there was no one for around 30 mins. Then, when the person arrived, he did a 'soft' credit worthiness check (as if I was "buying" a car on loan). Then he said the test had failed and hence, will not provide a car. I was totally shocked, and even offered to show my credit card as well as bank statements which had enough availabilty, balance, etc. However, the person was adamant. I was also told that this was a new policy for British customers (with UK driving license) - very discriminatory. I even asked him to show the terms and conditions about such a rule but nothing was shown. Overall, I did not get the car, and this resulted in a total waste of the day, which was planned for doing good things. I would very very strongly suggest avoiding this company at all costs.