Very bed customer service for a manager

On Monday 30th of November I visited Mr Price at Daveyton Mall. As I arrived I notice a difference in behaviour it was because they had a head office visit. Everything was on point and everyone was doing their worked. I came back the very same afternoon to do a exchange it took longer than it was suppose. That was cause by two people at the till who were having a personal conveirsation with a random man.I than asked for the manager and I was pointed to the direction of the person I was complaining about. I approached her and complained about their behaviour and she started to shout telling me the guy was a cop and a customer and she can't chase him away cause the where discussing a case. I than told her I would report her behaviour and she didn't care instead told me to go ahead. I asked for her name, cause she didn't have a nametag on. They were relented to give it to me but ended up giving me a name which is Joyce. Please assist me by dealing with your employees and teaching them proper customer service. We all work with people. This is oeof the thinks that make as lose customers