Wrongfuly advised

About a month ago I got a call from one of your marketing companies about the LTE campaign that Telkom has, as I am a person that looks for stability in interenet I was very interested, i was advised if I take the contract with them then my exisitng 15GB + 15GB will be cancelled, I asked them what is the package that is available for LTE that has the most data to which I was advised 10 GB, not being very happy with 10GB i still took it as 10GB LTE is better then 15GB 3G so I took the 10GB package, afterwards I realised I am still paying for my 15GB package to which I thought that must just be the last payment so I ignored it, by the 2nd July I found out that my contract is still active so I went to Telkom the Glen to ask what is happening and they confirmed the contract is still open, so now I am paying for 2 contracts after being procmised one will be closed when taking the other, the representitive at your The GLen branch logged a call with the accounts department to call me to sort out and still no one has called me after 2 weeks. Over and above I founds out there is a uncapped option for R600.00, I would like to talk about that as well, there is just not enough space here