VMware interview questions

The interview for an internship position took 2 to 3 weeks. I had one HR interview, coding test and an online interview with a senior MTS. The coding test contains 10 questions and 3 tasks - OOP and Data structures and algorithms

Had 2 rounds - first one was hiring manager round and the second round was technical, coding round. All were virtual over zoom since it was in the middle of the pandemic. The interview went satisfactory for me. Since there was no response, I contacted HR. And they informed me that I was not selected. This took me by surprise since I had answered both the questions satisfactorily , in under 1 hour. I decided to ask for feedback from HR informally over phone, since it would have helped me in my future preparations. But they refused saying that it is against their policy to say anything.