Deutsche Telekom interview questions

I was called for an interview directly by the head of department I would be working for. Was scheduled for an interview next day. There were some technical issues because Telekom prefers to use outdated Cisco WebEx.Inteview started but the other team member left after 15 minutes because he had to go somewhere. I was assured that another interview will be conducted since this kind of no complete. I received a rejection two weeks later through an automated system message. The absolute disrespect shown towards a candidate and then no feedback in the end. Would never work for such a company and I recommend that you don't if you're not a German.