Dunzo Software Engineer II - Backend interview questions

It was a very bad experience, I applied for the role and got a hackerrank link for a coding round. There were 3 questions in test 2 DS-based 1 API-based. I solved all the 3 questions with all the test cases successfully passed. Then there is a reply from the company "we will not be able to move forward with the candidacy at this time" without any proper reason.