Dataminr Copyeditor interview questions

After sending my CV, they wanted to proceed with a phone interview and we scheduled the phone call. I never received the call and enquired whether there had been any problem. They said they had been unable to reach me and asked for my phone number again to reschedule the interview. I gave them two different phone numbers and after that there was no response. A few days later I received an email thanking me for "participating" in their interview process. Not a very good experience, it felt quite unprofessional and disrespectful.