Bad service

brought a Versed mobile device to the CNA Vaalmall branch on 24/08/15 as it just went off and wasn't switching on,it showed a sad face icon when trying to switch it on. Lebo Motjhela promised to take it in for repairs as it was still under warranty. I came a week later and the lady said that the device was not back,a week later I called and no one could assist me. I then came two weeks later and Ruth told me that Lebo was not there and I again wasn't helped and was promised to be called by Lebo but didn't receive a single call. I went in store again a week later and Lebo told the repair department said she should call a week later and she'll call me after calling them,and again no call from her. I went in store again and talked to Ruth and the device was still not there and was. I requested to talk to Marie the store manager but was not available. Its the first time I get such *********** people who just don't take customers serious. Almost two months and the phone not repaired. This is the worse service ever