Game stores and Vodacom POOR service

<p>At the end of june i upgraded my cellphone contract at GAME WELKOM and game and VODACOM is still unable to rectify the payments on my acc eventhough i have called them many times and even went to the stores many more times they are .sill deducting much more than they are supposed to i'm fed up with the poor service i am receiving .Any suggestions</p>