MFC is useless on every level of customer service

I have bought two cars through MFC finance which is a division of Nedbank. I called and asked for my car's papers once it had been paid off and they assured me that they would send the papers to my nearest Nedbank branch. That was a year ago and the branch still don't have my papers. The dealer who sold me my second car made an error on the contract and put the car as financed over 72 months instead of 60 months. I called MFC and asked them to change the finance terms. They assured me they would, informed me of my higher premium, which I agreed to and 6 months later, this has still not been done. I tried to call them to follow up today, No-one answers the phone and then you get put on hold in dead silence, no idea whether you have been cut off or not. I then tried to log-in to their self service on the website and surprise, surprise the function is not available. I most certainly will not be financing another car with MFC or ever banking with Nedbank. Worst banking institution in the country in my opinion.