John Lewis & Partners interview questions

It was a group interview with a scenario we had to work together on. It was a bit excruciating at times but I thought I contributed well and listened to the other candidates carefully. However, I was informed I had not been successful before I even got home! I asked for feedback but was told there were too many applicants for the company to have time to provide feedback. I was told I have been added to the Silver Medallist candidate bank. I’d really like to know why I was rejected as this would really help me move forward with my job hunting.