Wrong information cancelation went wrong

I' m struggling since April to get the right answer from Vodacom. I went in and ask the consultant when is my contract ending. He said it was already on month to month. I ask the consultant to cancel my contract. Then the end of the month they deducted R7500 from my account. I went and explained something is not right,because i know if you cancel your contract that is still in its 2 years cancelations sends you a quote that you must sign and pay before it can be canceled. I can not get a loan at the banks now all because of Vodacom. I send them emails a lawyers letters. The manager of cape gate try and contact someone that can help us. I called cancelations and they send the consulted did something wrong and it is the branches fault. Still struggling to get an answer and need a loan soon or i can be in a very bad position. I need to keep my other contract open so that they can keep track of my account.This is really very bad service.