Payment after homeloan Settlement

1. the bond was settled last week, and my debit order still went off yesterday (01/09/2018). should I just reverse the debit order and place a stop order? Who says Nedbank will not take more of my money? 2. the last Statement received by the bank on 01/06/2018 we still owed R 584K, Then when looking at the amount the bank was settled for R 614K. This is a whopping R 30K lesser than the outstanding? how is this possible? 3. When phoning Homeloan division, they referred me back to the Attorneys. how does this make sense if you cannot get a straight answer from anyone?