BAD ATTITUDE

I purchased a car from Hyundai through MFC in August 2013. I requested the debit order to be stopped in March 2014 as I was swapping banks & preferred to make the payment cash. Once my new banking account was up & running in August 2014, I requested MFC to please start debiting my new account. It is almost a year later & i still have not had the debit order reinstated. I have to, on a monthly basis, physically go into a Nedbank branch to make the payment. Yet everytime an agent calls me on the 26th for payment (my paydate is the 25th) I ask them to please reinstate my debit order. I am requested to send through banking details, yet none of the agents I've spoken to have sent me an email address so that I can provide MFC with what they require. So whose fault is this now? I sometimes don't always have the time to visit a Nedbank too make payment. Why is it so difficult for MFC to reinstate my debit order? Why can't an email address be sent to me so that MFC can start debiting my account? This is ridiculous and I am beyond frustrated with MFC now. Jonathan the agent that just called me has no way of speaking to clients. He has no phone ethic.