X Product Designer interview questions

I was referred by an employee at Twitter for a product design position. I had a brief phone screening where I learned more about the role and they asked for information on my background. Afterwards, we setup a call for the interview. An emergency came up on my end, and while I was able to chat briefly for a couple of minutes with the interviewer, I asked them if we could reschedule. Since that point, the people at Twitter have completely dodged and ignored all of my emails and I can't get any information out of them. They are completely unresponsive. This has really disappointed me, and I won't be applying for Twitter again. Their HR team is completely scattered, and the applicants are the ones suffering.