Santander .Senior Analyst interview questions

First round with an HR followed by hiring manager. The interviewer asked behavioural questions. Go through the job description and company details in advance. First round was an HR call. She just checked if I have experience in all key areas mentioned in the job description.

I had 2 calls with senior analysts and 2 calls with Directors. Calls with senior analysts were pretty easy: interpret results outputted by a software package, do some math like calculating profit margins. Had a pretty negative experience with the directors. One seemed to have made a mistake in explaining the task and couldn't admit his mistake. Another just behaved very unprofessionally.