Franklin Templeton interview questions

The HR called me and explained the job description. After a couple of weeks, 1st round of interview happened with the Hiring Manager which happened for an hour. Then a 2nd round happened which was a technical round for 1 hour. Then a couple of weeks later, I was asked to come to their campus for a day long live interview. Post my day long interview in their campus, I was ghosted by the HR and Hiring manager. They did not answer my phone calls, emails and messages. After spending so much time and efforts for the interview, all I can expect is an simple answer even if I was not selected. They treated as if my time was not even valuable. Please do not take such interviews if you are not going to give a proper response to the candidates.

Very casual interview, probably just wanted to know if I could speak in English or not. Followed a test with basic numpy, pandas and stuff so got asked questions about that. Also asked a fair amount about my resume.