QuickSell Senior Software Engineer Tech Lead interview questions

First interview was on problem solving, was asked to solve an intersection problem, interview went fine. Second round, the interviewer asked the same question, then I had to clarify to him that this was the second round. :( Third round, it was the same interviewer, I don't understand why the same person had to interview again if he could not get to a decision in previous interview of one hour. Overall a very bad interview experience. Having said, the recruiter handled communication very well, she contantly updated and reached out on progress. I denied the final round assignment, as I felt it was not worth it.