Delta Air Lines Software Development Engineer interview questions

I got a call for the interview and I had one normal assessment round and then one technical round which I cleared and then they called at the Bengaluru office for interview , it went well and they gave positive feedback also after that. After that they ghosted me. I called back after waiting for 2 weeks , HR immediately disconnected the call and then sent the rejection email at the same time. Maybe you git anyone else at lower budget but you should inform the candidate about the final status because they might be waiting for that.