Why was that interview so lengthy? Usually, in Europe, if you can show a bank statement for the last ~3 months that shows you get regular payments from a compan

Why was that interview so lengthy? Usually, in Europe, if you can show a bank statement for the last ~3 months that shows you get regular payments from a company, and/or a statement from your employer that you're a regular employee (not just started, not already halfway out of the door) then you're good to go.