Vodacom Abort/Sold my phone

This is my 2nd complaint.The previous reply I got from Vodacom was an apology and additional contact details to resolve my issue,which I did contact.In short, my phone had a software problem,it was 3months old,Vodacom BFN Waterfront send it away,never informed me of the additional cost to repair my volume button,which I never requested,because it was working fine it just had a dent in it,but working 100%,my phone had a software problem.After about weeks i didnt hear back from Vodacom I phoned the to find out about the status of my phone,they said the software problem couldnt be fixed,cause I didnt accept the quote for about R5000 to repair my volume button,which I never had a problem with and explained it over and over.I lodged a complaint on Hello Peter and got the reply back as explained above.I went back to just to get told my phone has been sold/given away,on my receipt they said I will collect my phone,I said I will not collect my phone if it is not fixed or my issue has been resolved.Now months later,my new iPhone6 is gone I'm paying for my new contract,using and old phone for months now.Please I demand an answer,I am paying for something I dont have.Ivestigating legal step