Phone in repairs for 2 months- No update

I booked my Sony z3 in for repairs on 4 March. I am insured for the phone, through cellsure(Vodacoms insurance), which I told the consultant. I filled in an insurance claim form and was told I could expect the phone back within 7 - 14 working days. On the 20th of March I mailed the Woodmead Vodacom store, to find out what was happening. They then sent me the same insurance form I filled in at the start. On the 24th of March, I called Vodacom repairs to find out how long I could expect to wait. The consultant told me it's at a third party and should be back by that Friday(27th)- I still do not have my phone. I call, mail and visit the store weekly and the Woodmead store says head office is where the problem lies, and head office says its the Woodmead store. I rely on my phone for business and have lost clients. I also got stuck on the highway and had to walk to an offramp at 6pm, as I had no phone to call for help. But my debit order of R750-00 has gone off for the last 2 months, even though I do not have the phone. All i'm interested in now, is to cancel my contract and they can keep their phone. Throughout this ordeal I have remained calm and nice, but I've had enough!!