I booked a car through EconomyBookings.com website, they charged around 8 Euros as a down payment or insurance (I'm not sure). And when i went to car rental company (KEM - Cyprus) they coudn't find the booking on their system. I show them the booking and confermation email but they didn't cooperate and told me to contact the website, its not their problem and they can't do anything! I tried to call EconomyBookings many times, everytime they kept me on hold for long time and then hang up.
Its a scam - don't deal with this website