Nothing done to my phone since the 3rd of december

I took my phone for software upgrade at Centurion Mall. I was experiencing problems with sending and receiving messages as well. it was taken to their repair shop on the 03.12.2015. I followed up with them and I was told my phone has external damages to it and I will need to pay for it due to the damages. I queried this cause all along the phone was functioning and I was informed when the phone gets there everything is assessed. I then informed the branch its fine I will register a claim for the damages as I have insurance with them. I submitted my documents and today I get a message saying my device is being returned to the store not repaired. I called Vodacom repairs spoke to Thelma and she advised the centurion branch took long to respond its not their fault this was not done. I should take it up with the manager at the store they know the turn around time which is within 9 days. I'm left in the middle of no where as the client paying a contract for a phone I am not using. I'm very angry and disappointed by this service I'm getting from Vodacom. I'm planning to go directly to Voda World and make a scene. I cant pay for something I'm not using.