Navan Account Manager interview questions

I was contacted by a recruiter via email that they would like to move forward in the interview process. They sent me a link so that I could submit my availability which I sent over immediately. 3 days had passed and there was no word from the recruiter so I sent a follow up email asking for a followup. No response email and a few days after I was sent an email saying they will not move forward in the interview process. I have never seen such a high level of UNPROFESSIONALISM in my life. Clearly this company does not have adequate or reliable employees and they saved me the trouble.