This company is on the radar for cheating citizens and tourists at the European Trade and Commerce commission. They wanted half of the vehicles value as deposit. I thought he was joking. Finally squeezed him down to 5000 euro for a base compact sedan. They said we don't know what they have to deal with and they have to protect themselves. It was the weekend . Called Emabssy and Euro retail commission Monday and they immediately advised me to call police.
Lost my money as I booked car months before trip. Nu Car is the broker. All scams. Just go with the reputable rental company. These people don't represent most of czech population.