Interrent

This is a disgusting thieving company!
Generally it's a very budget company with ridiculous add-ons (i. E. charged extra for cleaning the interior of the car!), but our experience was worse than that.
We dropped the car back out of hours with a full tank of fuel, two hours before our contract end time, as had been agreed. Once we were back home, we received an invoice where they'd charged us an extra day (claiming we had dropped it back 14 hours after we actually did) and for fuel (even though it was full). A very long story later (with expensive phone calls and lots of time wasted) and they're refusing to refund our money, saying there's nothing they can do, and saying WE have to get in contact with the CCTV company if we want to prove what we're saying (even though they have zero proof otherwise).
Do not use this outrageously awful criminal company!