Bill dispute

I was phoned by one of your agents, named Tendai Cynthia Rambou who verbalised that I am one of the lucky customers who will getting a 80% discount on the deal he was about to sell to me. He offered me a Sim Card with 20gigs data, a mobile router and a power bank for only R59.00. I said yes to the deal as to me that was a great deal, however on arrival of the package, I opened it I saw it consist of 2 Sim Card and on activation of the Sim Card I found out that the one Sim Card consist of 5Gigs and the other one consist of 10Gigs and that my monthly instalment will be R199.00. I was'nt really worried then and thought I will wait for the debit to go through and see for myself or thought that the 80% will show then. The debit that went off on my Bank statement as attached indicate both contracts I have with Cell C, however I have include in the attachment my statement aswell that indicate the contract I dispute at present. The cell numbers of the contract I dispute is as follows: *** and ***. I would like you to investigate this matter as a matter of urgency and reinburse me as this is my right as a consumer. I kept asking him if my instalment will be R59.00, and he reassured me that R59.00 will be what I will pay monthly. He also said that the first month will be a little more as prorated. My request to you is to listen to the call and make an informed decision. The above is an email that I have send to Cell C's customer services on the 05/10/2022 and requested to listen to the call recording, however up to today I am still waiting for the recording. I was send to the Cell C shop to listen to the call with no success. Cell C is the worse ever telecommunication company to make business with. Last week I have received a call from one of their back office agents who wants to cancel the one contract as he admitted that 2 contracts was sold to me. I told him I did not consent for 2 contracts, then he drop the call and up to today they did not phone me back. I would like to take this matter further, any advise please.