Refusal to hear call recording regarding data for loyal customers - dirty business

Vodacom Data Bundles for Loyal Customers is actually a charge over and above. I explained to the person that I did not have the extra money and she assured me that I would not be billed extra. Now I am asking Vodacom to listen to the call and I was told that it is obvious the charge is over and above. I don't have the money to pay this as I have been retrenched. So I want to listen to the call recording and hear how obvious it is that I agreed to pay over and above. I made extensive notes and this is call that I am looking for. Sharay 17.02.2020, recorded employee no 16788, Ref no ***N***. Since you refuse to credit me, I have a right to hear what I agreed to. Please e-mail the call recording to ***

I trust that someone there has integrity