Cancelation is a nightmare

I have made over 6 calls to Vodacom since Feb regarding my move and cancelation of my account. At sales stage, I was told that because it's a month to month, I will just need to cancel a month before and will only be liable to pay for the one month I used because I pay in arrears. I am moving to an area you do not service so you referred me to Vumatel. I am set up now and reveived thee best service ever. Now, I was shocked to receive a quote for R1000 from one of your consultants. I responded to the email to ask her what the amount is for and she still has not responded. This was a little over a week ago. I am not going to have this with you guys anymore. I need someone competent to please send me a proper email confirming that I will be debited R499 and that's it. If not trust me I will reverse it all and not even pay that R499. I will also be escalating this matter to your CEO Shameel. Yes, I have his email address. If that does not bring me joy I will approach the consumer commission. Trust me we can do this dance all year. In a nutshell, I need this sorted before I blow this out the water. Thank you