Misrepresentation - I was called for a mid term upgrade without a handset upgrade..

The lady phoned me with the good news of a half year upgrade for R90.00 additional to a flexi 350. without a new handset, She explains very well and confirms three times that my payment will only increase with R90 .00 and my total account will go up to R903 per month and is R803. As I said I confirm this three times with her and she confirms it will be done for the next month to avoid a double debit order. Needless to say, I received an account of R1300.00. I phoned and cancel the deal as it was communicated to me that I am allowed to cancel this if it is not what was promoted to me. They confirm cancellation and I was told to stop my debit order and pay cash the R803 as usual. I did that. but know I receive an account of R3000.00 and it looks like I am in red al the time. I went to Vodacom head office in Menlyn , I went to Value-mart, I phoned several times and this is still not sorted.