DoorDash Senior Territory Development Representative interview questions

30 minute interview with HR. 45 mins with a Manager, 45 mins Role Play, 45 mins Behavioural then a Case Study that I had to submit 24 hours before next interviews. If I passed Case Study then I would have 4 x 45 minute interviews doing Role Play again, Behavioural again, Case Scenarios and Im not sure what the last one would be as they added it last minute. I found out by HR that I did not pass the Case Study because I did not provide enough analysis. When asked what specifically I didn't provide I was told they didn't know as they were just the messenger. Really disappointed in this process as I worked really hard towards this opportunity and received zero feedback as to what I could have done differently.