Vodacom *****ing money from my account

My daughter phoned the cancellations department to request a quote to cancel my contract early, as she only had 2 months left. She paid the quoted amount, and she sent documents as instructed as proof. The cancellation dept confirmed telephonically that cancellation was in process. Vodacom deducted another debit order today, (01/11/2022) and they even changed the amount so that it would go through. This is ********** activity by Vodacom, her contract is paid in full and cancelled. How does one cancel a contract with Vodacom, as this is a never-ending battle. My son had precisely the same experience, and this saga lasted for 2 years with him. TERRIBLE SERVICE FROM VODACOM.