I WAS MISINFORMED NOW I HAVE TWO CONTRACTS

My phone stopped working properly, so I contacted Vodacom to try and get a pre-upgrade. They told me I could not get the pre upgrade, I offered to pay for my contract in advance they still refused. I called them, my colleague called, we asked them 'if I had to take a new contract would I be able to transfer my number at a later stage?' On all occasions they told me that I would be able to. With that advice I went to Irene mall and took out a new contract on the 20th of June. I contacted Vodacom on the 3rd of July the gentlemen I spoke to told me, I was misinformed, I should have paid a R1000 to cancel my contract and then taken the new contract onto my old number, he opened an investigation for me. NOBODY called me within the 7 days as PROMISED. On the 14th of July I spoke to a lady that told me you cannot cancel your contract by paying an x amount, you can only cancel a month before contract ends.The Upgrades department blamed the customer care department and vice versa, I ended up with two contracts.The call centre people of Vodacom contradict each other and because of their INCOMPETENCE I sit with a problem having two contracts.Please could you resolve this problem.