Incorrect Debit costing me more than R 500 in banking fees.

I am so frustrated that I am as a last resort going to HP and hoping this gets some traction to my query.

I changed bank accounts and notified ADT via email on the 7th of August. I initially wanted to cancel the debit order but they charge an extra R65 per month if you do not have a debit order so I opted to switch the debit order to the new bank.

I got confirmation from the agent that the banking details change has been made effective September. I made a manual payment and ADT still tried 2 times to deduct from the wrong account both times costing me banking fees on the old account for non payment.

A month goes by and despite confirmation ADT again tries to debit the wrong account and again I pay banking fees. So again I made a manual payment and asked them to look into the issue.

This time the agent confirmed "Will definitely not happen next month again" but guess what today they again tried to debit the wrong account for R8.50 which I do not even know what for. Now an R8.50 debit from a wrong account after absolute confirmation that it will not happen again it has.

Surely changing banking details cannot be this difficult and is something that should have a process in place.

To date this inability to change has cost me in excess of R500 in banking fees, I accept that some of it is me waiting until the last minute to inform them of the change but we are now in the second month way past the 30 day period they need to make the changes.

The service from the monitoring centre has been great but I cannot fathom how you can run a business with service like this on the billing side.