Check your private messages
As above, company's are getting smarter when they recruit because of well reserched and rehersed applicants. We (QF) have changed 3 times in 12 months the style of questioning.
Look at your working background and get face to face ground roots customer service experiance. It really shows in questioning because you can reply with examples of your customer service skills and how you have handled differant situations. (Big Tip for QF interviews)