Over charging on my instalment

I was called by one of Vodacom consultant that my cellphone is due for an upgrade in March this year, but I didn't upgrade with them that time, I called them back and made an upgrade but the lady who was helping me did not tell me that if I upgrade my phone that time I will have to pay R200.00 for cellphone she only told me about the package fee which is R319.00pm.<br> <br> I didn't realize that they were deducting that R200.00 extra on my account as my phone is an open line I thought I was over using it, until I decided to put that simcard away so that I can pay only R319.00 but my installment never changed I still paid R519.00.<br> <br> I called Vodacom and they told me that I was not due for an upgrade that's why I am paying R319.00 for the package and R200.00 for a cellphone and no one told me about that R200.00 for a phone because if I knew I would not have accepted an upgrade that time.<br> <br> They gave me a reference number and told me that they will call me after 2 days I am still waiting even now.