Meta Product Manager interview questions

Facebook recruiter reached out me and we had initial discussion. He gave me option of telephonic or in-person for first round of interview and I chose in-person. I had 2 interviews 1) product sense and 2) product execution. As part of product sense, there were 2 PMs, one PM was driving the interview and other PM was shadowing. There was only one PM for product execution. After the interviews there was no response from Facebook team. I tried to follow-up with them couple of time but nobody cared to respond. It was very unprofessional and I did not expect it for Facebook recruiting team.