Telkom not cancelling my data contract after telephonic request

I requested to cancel my data contracts at the Telkom shop after which I was informed by the consultant it can only be cancelled via the telephone. I followed the steps and cancelled my data contracts telephonically, received reference numbers and was ensured that my contracts have been cancelled. Cancellation was requested in July 2023, we are now at the end of September and my bank account is still being debited for the data contracts. This is unacceptable and such bad service from Telkom.