********** debit order

I'm so frustrated with FNB and trying to get a ********** Vodacom debit order stopped and reversed. I spent hours on the phone today trying to speak to a real person and not that automated attendant. I am not able to reverse or stop the debit order myself on the App as the amount is "high ". Can someone phone me and sort this out asap. It would be great if you could send your customers a verification on the App to approve any new debit orders!