Waiting for phone since Dec

To whom it may concern, I booked my phone in for repairs in December 2015, and was told that it wont take more than a month to get my phone back. Every week I call the shop and get told by Louis that she will call me back but she never does. Now its been 2 months and I am really irritated with the service that I am getting. Why is the phone not repaired? why am I not getting any feedback? Every month my account gets debited for the contract and insurance, by now this phone should of been repaired. I use my own airtime to call Vodacom, I pay my month subscription fees for a phone that I am not using and insurance that seems like I cant claim from? This is not service..... and not fair to me as a consumer. If this matter is not resolved immediately I will take this further.