Bounced debit orders

This is the second month of the contract and the debit order bounced, not due to insufficient funds in my account but because some idiot at Cell C captured the incorrect bank details. I can understand this happening once but now twice just shows the level of incompetence by Cell C.<br> <br> After the first debit bounce I contacted Cell C who advised only 4 digits were captured as my account number. I then gave in the full details and now this morning see that it bounced again so clearly this has not been updated.<br> I then get called by someone in collections who does not help with the situation, she does not listen to the problem and just irritated me more.<br> <br> I would like a manager or someone who can actually amend my account details to contact me by email now and I will then send my bank details for the 3rd time and hopefully this can finally be resolved.