Be aware of Firefly car rental!!! they really cheat people and charge your credit card after one year after renting.
After 9 months after renting I've foun that my card is carged by 200 eur without any ecxplanation. Of course i asked rental company for them, but they didn't reply.
It's really good that in EU we have European Consumer center, which helped me to msolve thois problem. After few months of fighting, they finally returned my money back to creadit card!
So advice to everyone:
-do not use Firefly at ny costs, even if they are the cheapest choice, cause after some time they will charge you wihout any explanation
-change your credit card after using FireFly
-apply to European Consumer Center to get help if you are charged!