Interviewer himself was quite polite. Just asked your normal interview questions but it was a bit more detailed than usual. When it came to salary, there was absolutely no room for negotiation and I was told 'you're actually getting paid really well for your role so I would advise you to stay there as your salary expectation is too high'. I understand that they may feel this way but it wasn't really warranted advice - also I was given more than a 20% raise at the same current role and company and additionally I was offered much more salary from other companies. So they were also clearly wrong about salary expectations too..