iRhythm Technologies Sr. Software Quality Assurance Engineer interview questions

This seems like a trend amongst the recruiters with Irythm… but, I had applied to this role, and about a week later I was emailed to schedule an introductory interview. Within 15 mins of receiving that email, I successfully submitted my availability for the entire next week (the time frame I was asked to give), but never received a confirmation email on a date/time that was selected. I had then emailed the recruiter directly to confirm with no response that same day. I had then emailed that recruiter again the next day, again with no response. I then emailed that same recruiter again 5 days later with no response yet again. This ghosting is completely unacceptable and quite unprofessional… the recruiting needs to be reassessed in the worst way.