Bad Service from Cell C overall

Very disappointed in Cell C. My contract ended in August 2024 and to date I am still debited, I asked Cell C to cancel the contract, and it's still not cancelled. I don't remember signing or requesting Cell C to load airtime for me once the contract has ended. I was promised that someone will give me a call in September and October, I had to call again today and spoke to a very unprofessional consultant by the name of Zolisa who screams at customers and not listen to them, please also address this matter. Zolisa lacks customer service, how does he explain shouting at customers. May I ask that Cell C reverses all the amounts deducted after August and that they cancel the contract.