Experian Senior Ux Writer interview questions

I applied online. Within a few days, I heard back from HR who contacted me persistently (multiple phone calls with follow-up text messages when I wasn't able to answer right away) to set up a first-round interview. I had the first round interview which seemed to go well, and the interviewer said he'd speak to HR about setting up a further conversation. But that was over a month ago and despite chasing, I've heard nothing. From other reviews, it looks like I'm not the first person to be ghosted like this.