Vodacom Customer Care

Good morning to you. I need assistance to make a large corporation listen to my problem and stop ignoring me and my complaint. I am hoping somebody will respond to this post of mine. I have five contracts with Vodacom. One of them, a data package has reached the end of the contract, and I have asked Vodacom repeatedly to convert this to a pay as you go. The problem is that the people in the shops cannot will not assist, I have to phone a certain number, or the call centre, and the persons in the call centre keep trying to sell me a new contract. I DONT WANT A NEW CONTRACT Twice now already I have been told that the change to PAGO will be implemented at the end of the month.It does not happen!!! And then they just keep deducting the monies of my bank account Please get somebody at higher level to contact me. I am sick of talking to the Call Centre where I get no reaction