iSi (Germany) interview questions

An intern takes your interview, which makes no sense. All started well, i was asked many questions, and I felt no pressure at all. But after some misunderstandings, she behaved in a very anti professional manner, while the whole interview was flowing very smoothly.

Super short and unprofessional. I talked only with the person in charge of HR and it turn out this person was an intern. The problem is that I didn't spoke with any manager or person from the department before starting in the company.