My 18 yo DD and her friend have saved their wages from their PT jobs (at school) for a year to go to Paris for NYE. They booked an AirBnB (DD is autistic and wanted somewhere self-contained). When they arrived, the door of the flat wouldn't open. They called the owner who told them to be firm with the key - they tried this and the key broke off in the lock. They called the owner who became angry with them and told them they would have to pay, and that it would cost €1000 on NYE to get a locksmith. Things escalated and my DD's friend told the woman to "Fxxx off" (which obviously didn't help and I'm not excusing it) - though she did immediately send a Whatsapp message to her apologizing. At this point DD called me, as I speak some French, and I WhatsApped the owner to try to resolve the situation. She advised she couldn't do anything as she didn't live in Paris, "couldn't work miracles" and they should try a hotel. As you might expect, hotels in Paris on NYE were either extortionate or full or both. They called AirBnB who said they would help them get in the apartment that night - but didn't. Luckily they found beds in a mixed dorm in a hostel and are making the best of things, but today they have been sent a bill for £450 from Airbnb to pay for a locksmith. AIBU to suggest they should contest this? I feel they did as advised, were left in a very vulnerable position, are already out of pocket, and never even got into the flat!