Deutsche Bank Vendor Performance Manager interview questions

I applied online and had 2 separate phone interviews over the course of 4 weeks. Ca. 10 days after the 2nd interview, I received an automated generic email notifying me that I was not the chosen candidate. I went back to the HR partner and asked for specific feedback seeing as I’d invested considerable time and effort in to their recruitment process. She acknowledged the need and reassured me she’d send me it. 3 weeks later I still haven’t heard back. It’s sad and unacceptable that they treat candidates like commodities and won’t even dignify us with valid feedback.