MORI interview questions

Very disappointing. Was given a 20 minute interview with HR, never given the salary amount at any point. Then went on to have only a rushed 30 minute interview with head of buying after prepping 6 hours worth of detailed work ahead of the interview. Had a vast amount of ideas that was quickly asked to forward across to the business which is concerning to get a rejection email 2 days later and HR straight off for Christmas. Manager asked about previous brand I worked for “What was it like as she heard bad things”. HR told me the job role was available due to an employee leaving the business, came across like it was on bad terms. Lacking professionalism. Very obvious that they were going with a candidate they already knew personally, never felt I was given a fair chance. No salary given or proper feedback just “nothing more I could’ve done”, avoid.