Interroll Group interview questions

An external headhunter reached to me for an Interroll position. I did a first online technical interview with Interroll and after that they invited me to have a f2f interview in Sant'Antonio. I payed by myself the flights, the Hotel and the meals to go to have the presential interview. I took a day of hollidays at my current job. I went 30 mins earlier to the interview to ensure I was relax and I did my best during the interview. After 1 week they answered they have a "better fit" for the position. They didn't refund the cost of going there. I feel like this is a traumatic experience. I am from Spain and Switzerland flight is a high cost trip. The reason of "finding a better fit" is out of my control so this was painful.

Schnelle Bearbeitung meiner Bewerbung schnelle Antwort und schnelle termin Vergabe im großen und ganzen sehr zufrieden sehr nett alle im großen udn ganzen zufrieden mit dem Verlauf wie halt ein professionelles Gespräch laufen sollte