Morgan Stanley spring week London final-stage telephone interview

Hi everyone! I was invited to Morgan Stanley's final stage interview for the spring insight programme in London. It consists of two telephone interviews each half an hour long. In the email it said the interviews would be about core skills needed to succeed in finance as well as competencies. It didn't say anything more specific though,
Has anyone had this interview already or knows about it? any advise as to what to prepare for?

any replies, comments, suggestions, etc. greatly appreciated! Many thanks!!