Deeporion Technology ROR Developer Trainee interview questions

I had an interview with Deeporion Technology pvt Ltd. Step 1 :- Basic HR Screening Round. Step 2: - Had 2 Technical Rounds. Basic programming questions in C++ and OOPs concepts, Web Development relevant Questions. Interviewers were good and calm. But at the time of joining they offered me the ROR Developer Trainee position and want me to join on 9 Dec 2024 than postponed to 16 Dec, It's 16 Feb 2025 till now I don't have any update about the joining process they are not responding my calls and Emails. I'm trying to contact with HR and Co-founder but no response. That's my experience with Deeporion Technology pvt Ltd that is unprofessional and Unethical requirement process.