Revolut Data Scientist interview questions

First phone interview with HR Then two home exercises (KYC and Fraud). After that, I had a face to face interview booked in Canary Wharf 15 minutes before the interview, I received a call from HR saying that the guy who was supposed to interview me was late. I gently asked "how much late? if it's 30 minutes I can wait, if it's more it is going to be difficult" 5 minutes before the interview, while I was already heading back to the tube station, I received another call from HR and they told me they were able to book another guy for the interview. I did the interview with a guy with 3 years of total working experience while I have 15 years. It was really embarrassing. Two days after, without any feedback, I received an email from Revolut asking me to fill a small survey about the interview process. They sent me the survey before the feedback! One day after, I received the standard email "we have decided not to progress further with your application" without any more detailed feedback. The whole process was simply amateur Overall it made me doubt the whole product, strategy and culture.