Sky Customer Advisor interview questions

A tour of the building followed by a presentation. Then a very informal one to one interview. Interviewer nice and very casual. Lots of swearing whilst interviewing me and more of an every day discussion rather than a question & answer. Received an email one day after the interview confirming I don't have the requirements for the role - Absolutely Baffling. Very surprising considering how down to earth and casual the interview was. Worked in a couple of call centres before so the job rejection reason doesn't sit right with me.