I booked a car through CarJet to rent a car for the day at Surprice Florence, Italy. When we arrived:
1. There was a huge queue because all the other customers were complaining and we had to wait for more than 1 hour
2. They told us, as they did for the other clients who were very upset as well - who were mentioning scams which absolutely seems to be the case - that the driver had to be the same one providing the credit card for the deposit which could not be done since the driver did not have a credit card. They were even arguing with the couple in front of us who wanted to use a joint account...
3. they told us they could cancel the reservation and do another one with them right there to change the driver (and add an extra driver for a fee), which then would have amounted to 3x the starting price
4. We decided not to get the car with all those extra prices but didn't get any refund for the first reservation, even though I tried to contact CarJet and explained the situation. Other customers, mainly tourists see themselves forced to proceed with this scam to continue with their trips. Avoid CarJet and Surprice!