False info / *******'s

So I was told by Cell C that I was due for an upgrade. After weeks of waiting for an Iphone 6 to be in stock I finally found one at Northgate Mall Branch. I was so excited to be finally upgrading only to realise that I was not given the proper information from the lady at the store neither was I given options for the upgrade. I was just told that I will start paying the new contract amount of R599 from June and I will continue paying my old amount as i have upgraded early. Upon checking my bill last week I found out that it is current sitting at R762. After calling the call centre I was transferred from customer service, to upgrades, then customer service again. I was told that I will be paying for my old handset and new for the next 3 months! I was outraged at this. This was never explained to me or I would have never upgraded! A query was logged and I was promised feedback on Monday 17/04/2015 and I have not received anything yet. This is not the first time Cell C has ******** me! Last year a consultant gave me wrong info about their \ Get more"product. This was added onto my account. I called 3 times to cancel and it was finally done 3 months later with no refund! Great fun!"""