Misleading information

I recently went to upgrade my contract. What I asked for and what I recieved, did not match. Additional services were added. And when I asked if the old contract were to be paid, the sales lady confirmed that the new contract will take over and the old contract being sropped. And this is not so. I Am paying the old and new contract. Do not know if this was done purposely or because of lack of knowledge. I specified that if this would be case, I will wait untill the 24 months are over and then upgrade. I went to the shop to querie this issue. Was told that all were done wrong and that the office will phone and rectify this issue. I am still waiting?