ThoughtSpot interview questions

I had total 3 Rounds of Interview. First round was based on System design. Second round was a pure coding round and Third round was System design and coding round, The only request I have to HR is that after 3 rounds of interview please give a proper feedback that why a candidate is rejected(My 3rd round went very well ) . It will be helpful for candidates since they are putting lot of time and effort and also they can use this feedback( if they feel like) for improving something.