Adding costs to account after settlement of outstanding fees.

Couple months ago I get a call from an agent, saying that I have an outstanding amount owed to rain. I ask for a statement, agent only sends an sms with a reference number and made me aware of the R250 that was outstanding. So, this was paid, as per the call and what the agent told me was outstanding.

Now, I'm getting calls from these people saying that I still owe, R54, but it was paid, as per what I was told to pay. Now I ask for a statement, they charging me for phone calls to call me to tell me that I owe them money for them calling me? Really? I paid the R250, I wasn't made aware of further charges, so I'm very sorry, but I did not authorize you to open an account with yourselves on my behalf, nor did I agree to any further costs, let alone be made aware of them.

According to the consumer act: (3) Upon cancellation of a consumer agreement as contemplated in subsection (1)(b)— (a) the consumer remains liable to the supplier for any amounts owed to the supplier in terms of that agreement up to the date of cancellation; and (b) the supplier— (i) may impose a reasonable cancellation penalty with respect to any goods supp****, services provided, or discounts granted, to the consumer in contemplation of the agreement enduring for its intended fixed term, if any; and (ii) must credit the consumer with any amount that remains the property of the consumer as of the date of cancellation,

This means that you as representatives of your client, agreed to the initial amount which was given to me telephonically, for which I paid in accordance to the agreement you were authorised to make on behalf of your client. You did not furnish me with any documentation stipulating additional costs, your representative additionally avoided requests for statements and further documentation showing costs and only informed me of the initial amount which was paid timeously as per what was requested of me at the time. I cannot be held liable for additional costs that I was not made aware of, and for which I received no information concerning. And as per your representative, who guided me to log into your customers portal, only confirmed that as per your customer, with whom I had an agreement, am fully paid up.