Relevent Sports Group interview questions

Very unprofessional. Saw the role on Linkedin and applied on the company website. Got an email 3 days later requesting to schedule and interview (which was re-scheduled about 4 times within a week). I had to keep following up with the recruiter. I had to write an email saying if they didn't want to move forward they should let me know. Then i get a call apologizing and we should reschedule for an interview(the 5th time). Finally, got to speak with them over the phone and he said he would follow up in January. Got a rejection email from HR saying they have decided to go with another candidate.