Vodacom Service

I upgraded my sons phone in October 2019 and upon looking at the invoice recently, I see that I am being charged for a handset after I was informed that the subscription is the only amount that will be charged. I still asked the gentleman who assisted me if that is the only amount that will be charged and his answer was yes. I was only informed about the one amount that still needs to be charged for the handset as that one was not paid in full yet. This was the R50 handset amount. Upon phoning on Friday ( 3/01/2019) a message was left for the gentleman who assisted me on the upgrade to contact me back. Well needles to say I have not received any phone calls. I am being charged for things as well which heaven alone knows who authorised it. Seems to me that you are being told one thing by Vodacom but yet something else is being done on your account and they just deduct it as it is on debit order. I would like to hear the recording where it was stipulated that I will pay for the subscription of a certain amount as well as the handset. When a person does phone, you get thrown from pillar to post which is frustrating on its own. Wonder how long it will take until I am being contacted and things are sorted. It is annoying that you are paying for something you are not aware of.