CarJet Refuses Refund After Rental Car Was Not Provided

I booked a VW Passat via CarJet to be picked up at Cologne Airport on 26.07.2026. On site, the local car rental company refused to hand over the vehicle and cancelled the booking. They stated that the vehicle would not be issued for the specific foreign destination country, although this was not made sufficiently clear during the booking process. CarJet then referred me to the small print in the terms and conditions and refused to refund the deposit of 180 €. As a result, the entire amount is lost for me, even though I did not receive any service at all. In addition, replies to my e‑mails take more than four weeks, which makes clarification extremely difficult. I request that CarJet refunds the full amount of 180 €, as the vehicle was not handed over and no service was provided.