Unpleasant and poor customer service & experience

I am profoundly dissatisfied and disappointed with Vodacom and its customer service experience. I contacted the company in late September and early October 2025 to request the cancellation of my contract. This request was fulfilled, and the representative I engaged with assured me that my contract had been terminated. Additionally, she assisted me with the cancellation of my insurance and offered a product valued at R85 in airtime and data, which I accepted. However, to my surprise, when I attempted to pay the R85 yesterday, I was informed that I owed over R600, though the breakdown of this charge was not provided. I contacted Vodacom at ***; the agent answered but was preoccupied with personal matters at home, which led to the call ending prematurely when the line was disconnected. When I called again, I reached Sandra, who expressed no interest in assisting with my complaint and informed me that she could take no action, thereby aggravating my frustration further. Subsequently, I contacted *** and spoke with Mr. Simon Ndlovu, who attempted to assist. However, due to apparent impatience, he stated that he had referred my issue to his team leader for further assistance. To date, I have not received a callback to resolve this matter, and I refuse to pay the alleged amount of over R600 claimed by Vodacom, especially considering my contract had been canceled. I urgently request that this matter be addressed. ID number: ***. Contact number: ***.