HelloFresh interview questions

I wasn't contacted for 2 months after applying, probably due to COVID-19, then I was contacted, we had a first screening, very nice interviewer and she told me about the next steps given it was a formality chat. A day later I get an automated, generic message and even reaching out to the interviewer via email, I obtained no response. Very impolite and impersonal, given that we had already had a conversation and absolutely no personal caring.

Initial call from HR, 90 min excel exam, interview with line manager, 3 hour case study, interview with manager in Germany. It was during COVID19 and I had a relatively smooth interview experience at first even though they sent a corrupt excel test file that corrupted my computer during the test. I was reluctant about the role given the lack of managerial experience in the team from every level (all very young and inexperienced). I was pretty appalled to see the the role re-advertised on LinkedIn a week after my final stage interview and was never contacted to be informed that I wasn't successful. Over 4 weeks on, I got a candidate survey to fill out about my experience. Oh the irony! Just shows a lack of integrity and professionalism on their part.