Deutsche Bank interview questions

The interview process went well.I have attended HR round in many companies. This one was the most horrible.It seemed like he was waiting to reject people. However, I was waitlisted and was given complete hope that I will be given the job in a week(not by HR). I didn't receive any update after two months. After asking about the waitlist through various mails, I was still ignored. After two months of waiting, I decided to ask about the waitlist to the HR on LinkedIn and was blocked. Worst management. I lost multiple opportunities in these two months in a hope of getting a job at this company.