Shell Energy Retail Sales Operations Representative interview questions

First was phone screening with HR. The second stage was a virtual interview, asking about background and common competency based questions. They told me they will get back to me asap as they were interviewing other person. Never heard back- extremely rude on their part as I would have appreciated a quick email or call to notify me of the outcome rather than leaving me confused. I emailed the HR few times to follow up, but he didn't reply and tried calling him but refused to answer and return my phone call. Very disappointing!