STA International interview questions

Started by introducing the business, about their goals and benefits to employees. Moved on to normal interview questions. Started asking very technical litigation questions which I had not prepared for. Clearly had not read my CV and wondering how I got an interview in the first place. Interviewer kept pressing knowing I was fumbling the answers. Interview should have ended here really, but continued and asked about salary and notice period. Asked nothing about my skills or competency only cared about experience.