I applied online and was also referred. After a week or so, I got contacted by a first recruiter to arrange a phone call in the next following days. I specifically made sure to provide with my new phone number as I was moving to another country at this time (the recruiter did answer to the email).
On the day of the interview, the recruiter tried to contact me on the wrong phone number, and we exchange emails at the same time to clarify everything out to make sure the person could contact me on the right number. Eventually, the recruiter decided to reschedule the call the next day to have enough time to chat and I did confirm. The next day, the recruiter just skipped the interview, without prior notice.
I did follow up the next two weeks, no answer. I eventually got an email back from a different recruiter saying that they decided not to move forward with my application. Still a little surprised with how the candidacy was taken care of, did not seem very professional.