Paradigm Software QA Engineer interview questions

It was fast, only had one interview round. I had an interview with 2 employees of the company of course related to the position I was applying for, everything looked good, and they looked like they liked me but at the end of the interview, they did not say anything else. After that, I had to text HR to ask when they would let me know if I am being selected or not, and then they told me they would let me know by the end of the week, the day after that, they sent me an email saying that I was not gonna be selected for the position and they did not even explain me the reason why, totally waste of time, I don't recommended