I applied through a recruiter.

The interview process started fine:

• Initial call with a recruiter.
• Technical question: pair programming.

The next interview was to deep dive into a system that I had designed, which is called "Bring your own design". The interview began, and they said, "It's a new system design question, and not a deep dive into a previous design." There had been a miscommunication. They apologized and said they're working on fixing the interview process, and they invited me to another technical round. Two days before the interview, they sent an email stating that, based on the outcome of the "Bring your own design" interview, they had decided to move forward with another candidate. It was unprofessional.

Design a database to be used to create surveys.