Telephonic upgrades are misleading

<p>Good day, I have been told by Vodacom after calling numerous departments that they do not call customers and offer upgrades! Then why is Vodacom debiting my account and giving my details to call centres? It's their product! I would like to listen to the telephonic sale and confirm what was purchased and take action accordingly, instead of resorting to posting a complaint! Additionally I do not appreciate being put on hold where my call is thereafter dropped!</p>