******* into thinking i was being rewarded for being a loyal customer

I received a call from *** on 27 October 2020 @ 09:24am, from Vodacom and guess what she made me believe Vodacom is "thanking" me with an added value service and i even asked her if i will be charged on top of my contract for anything she assured me that no i will not be, guess what, i woke up to an extra charge on my bill of R69, that is not how you do sales Vodacom, i hereby request an audio of the phone call and may you kindly remove the charge on my bill as i did not sign up for that, the lady in question must be answerable