Xamera interview questions

Called me on my phone and refereed to a person I have not met as someone I had met previously for an interview. Seemed unsure who I was. No real information about the role except for "merit to be working in windows and linux". Called me the next day, I did not have time as I was in a meeting, so asked to reschedule. Suggested two times, and just got "that is good", asked about the first time as ok, no response. Called when the hour arrived, and no answer. Overall confusing, unprofessional and unpleasant.