Zendesk interview questions

HR reached out over email. I confirmed the slots however, had to follow up 3 times, over 2 weeks for her to come back. After that she scheduled an preliminary discussion with her & later in the week, a round with the Director of CS based in Singapore. The HR ghosted me again. I followed up for feedback but no response. Not an experience a candidate should have & it would have taken 2 mins to share a feedback later.