N26 Localization Specialist interview questions

I applied online for a N26 position in their Berlin office. In less than 24 hours, they invited me to the first interview and asked for my availability to have a first call (30-45 min) next week. I selected one of the time slots they offered and let the recruiter know about it. I was quite confused because I never received a confirmation of the meeting, not even an automatic message. The meeting day arrived, they hadn't confirmed and, as expected, they did not call. So far the recruiter has not answered and I do not know if the interview will take place or not. The process seems unprofessional and unorganized.