Nedbank ncc service is very poor and pathetic

I have made several calls to Nccc trying to request my refund from my bond account(active bond NOT on Collection status), i have 2 debit orders running on my Homeloan(paying extra), i called several times to cancel this 2nd debit so does not run this month, was advised that its not possible to cancel it since its only 2days left before its deduct on my account and i ask how will i get my money back then was told to speak to collections hl, when i called Nedbank collections department they couldnt assist me as my bond account is active and not with collections, was told to call back to homeloans service, i tried again this morning from my *** just after 1pm and got throught to Chantel who disconnected my call and never callback aaaaarrrhhhh Nedbank call centere is such a mess and a hesle to deal with them. How can i get my R2000 back which m paying more and above the installment Nedbank tell me.