Rescinded my offer the same day before I could respond, ghosted me. Still to this day have no idea what went wrong, was very frustrated with the outcome - especially given how qualified I was for the role.

Have to register online sign up for a time slot. After the that have to sign an availability form. When you get to the venue you go through security and they have your name and have to mark it off. Take an escalator up to the floor and then wait to be called.