Eaton Finance interview questions

I gave four rounds of interview. The interview was scheduled on time. During the process the HR team was proactive but after the final round they just disappeared. It's been a month and I have been following up with HR. They don't reply to mails and don't pick up calls. Very unprofessional and mean.

I applied online and was contacted within a few weeks. Panel phone call with future manager and team. I had little to no professional experience so they were interested in my campus participation.