Terrible Service

Ackermans N1 City took in my cellphone for repairs on 31/03/2015 and I was told it would take 3 weeks. On 15/04/2015 I went to go an query if my phone has been sorted. I was made to wait an hour before i was told the cellphone has never been sent away and is still laying in store. When i questioned this I was given attitude by the lady who was 'assisting' me. When i asked to see the manager i was told she is on lunch but she will call me at 15h00. The manager Chanelle Corneluis never called me back. So I called her and had to explain the whole story to her as she was not aware of it. She told me she will take it up with Carmen d the lady who took in my phone and she will arrange for the phone to be sent away that same day. She promised to call me back on 17/04/2015 to let me know how far they are with my phone. She never called me. I then phoned Ackermans N1 City 4 times and was told the manager is too busy to speak to me. When i finally was allowed to speak to her I was told that she is a new manager and Chanelle Corneluis is not there. She then promised to follow up and call me back. I still have not received a call from her.