Contract Still Debiting Post Cancelation Request

On November 3 2022 I requested my cell c Fibre contract to be canceled as I moved houses and I was going to pay more money monthly to move the contract to the new house. I received an email on the 7 November that the contract has been canceled effective 30/11/2022 and that would be my final debit order which was clarifies after I enquired about the debit order on my account. This past Friday my account was debited again and no one can provide me with clarity around why I'm still being debited as I've requested cancelation. This is poor of cell c and I need someone to answer to this and stop debiting my account!