Zaxby's — I have a serious complaint one of your manager

My son worked for this zaxby restaurant and I was devastated on when he came home and told me that he didn't no longer what to work there because of the condition that he had to work under with his manger who does drug's with her employee and that she very friendly with the male employee and I asked him what was her name and he told me her name was Crystal so after I told him to quit I decided to report this incident to you because that is a place of business not a party place just what kind of business are you running I'm appalled by all of this