Capital One interview questions

Got a call from the recruiter after submitting resume through campus recruiting. She told me about a case workshop before their interview. I only had a 3 day lead time before my actual interview. I prepped as much as I could for the case interview. The case interview itself was about which marketing option should they take. I just forgot to keep track of the units while answering the case. The math was not really hard, but the interviewer was no help at all. I know I am not going to be getting the call for their "power day" , since im pretty sure I failed the case. Overall its an ok process, I feel they take too many people for the initial interview, but thats just my thinking.