Nuventure Technology Solutions interview questions

It was a bad experience from the HR team there. I had cleared everything, sent in all my documents and the next day they tell me the position is on hold. I asked what happened suddenly so the the recruiter said she will check with head HR and follow up. The next day she say I'm not selected for further rounds. After clearing the interview and sending in the documents as per their request this is what they tell me. Funny part is 1 or 2 days later another HR from there calls me and asks me to come to office to meet the CEO or someone as I'm apparently selected again or the position is not on hold anymore. I said I was busy that day as I had plans. Asked for the next available date and no response. Kept saying come today and ended the call. Then again no response ghosted me again. I have never had such a pathetic experience.