*******ion is spreading all over the work places

I phoned in last month (around the beginning of September) to set up a debit order for one of my accounts, and I stipulated that the monthly fee must be what ever the owed amount is (monthly installment), and this month this bank took all of my money (over R7280) because the call center agent, told the system to take whatever is owed in its entirety. Which is not what I stated when I made the phone call. Now other debit orders will fail, and My rent will be late. Nedbank doesn't care. When I call in, They first say it is a credit card payment, I don't even have a credit card. And then they say they can't help, I must call later. How amazing is the bank that I have been banking with for most of my life.