Revolut Data Scientist interview questions

It was a Data Scientist position in London and the HR didn't show up on the call. I wrote them, but didn't hear back. I'm not sure if I've ever witnessed so low level of professionalism.

I appreciate the HR representative. She informed me about the progress in each step. I couldn't pass the live coding. She shared feedbacks about my approach in solving the challenge, instead of sending a template email as many HR people do.