Bad customer service

I have a problem when you are employed to offer a service to the customer and fail to do that simply duty. On the 20th, I went to a Game store in Jabulani where customer services assisted myself and father to get through the call centre. At approximately 18h24, we got through to Olwethu who told customer service at the store that she is knocking off and cannot assist us. That is bad customer service. I work for a bank, if a customer walks in just before we close, hat customer has to be assisted. Even if there are still customers inside, they must ensure that they assisted, irrespective of our shifts coming to an end. That was very unprofessional and negligent from Olwethu. I need someone please to address her. This level of performance is totally unacceptable. If it was not for the assistance of the Jabulani store, myself and my father would have been left hanging in turn waste our time and money!