I received an email asking me to schedule an interview through a calendar link. I made one for the following week only to receive a rejection letter the next day, far before my interview. I wrote back to the person who sent me the scheduling email asking if I should remove the meeting from my calendar. Their response was a calendar cancellation of our meeting with no further explanation. I found it extremely unprofessional.

Scheduled a 15 minute call. Recruiter called 5 minutes early. Recruiter had limited knowledge of position. Recruiter must have been new to recruiting and had a very limited knowledge of a professional position.