Real Housewives fans will be used to cast switch-ups from time to time. But, Crystal Kung Minkoff’s axing came as a surprise to some when she wasn’t asked to return to The Real Housewives of Beverly Hills season 14. This May, Crystal sat down for a chat on SiriusXM’s Jeff Lewis Live to say why she thinks she was let go. The star was one of many Real Housewives cast members to depart from the Bravo franchise this year. It appeared that all at once, the shows lost many of their big names including Kandi Burruss of The Real Housewives of Atlanta. Why Crystal Minkoff thinks she wasn’t asked to ret…