It was with a referral from a friend. Basic recruiter questions. Call for tech screening - Python I was hoping for Pandas type questions which I use in my day job. They asked about creating a function to get cumulative sum

The process consisted of two screening rounds (one for SQL and another for Analytics Cases study/AB testing knowledge). The first round went well, all SQL questions were promptly answered. The analytics case study consisted of a problem statement and how an AB test could be designed to solve that which i was able to solve and answer Two days after that HR comes with back with a negative feedback . Asked if they can provide a detailed feedback to which the HR replies that received a simple no from interview panel (both rounds) and needs to follow up with the panel for a detailed feedback. I followed up multiple times with HR for the same to understand the gaps ( was highly surprised on the feedback received on SQL round) but no response. I have no idea what kind of expectations the interview panel had or if they were taking the interview rounds just to reject candidates. They need to value the time the applicant is putting in preparing for these rounds. The least they can do is to provide an actionable feedback for the candidate to introspect on.