Account Closure

It's sad that I find myself having to write this report about Nedbank. I paid up my personal loan account on 13 April 2013, clearly on the banks side it shows as paid up , but yet they won't close it or contact me to confirm this. I decided to call the bank just to make sure a debit order does not go off for an account that's paid up. so I get told it'll take 7 days for them to close the account. my question is ? what kind of processes do you perform that it takes 7days to close an account and yet less than 24hrs to open an account. I think you trying to make money off people that way. I find it unacceptable that I had to contact the bank to make sure that account is closed and especially 7 days to close an account that's been paid up 2 weeks and it reflects on your system for 2 weeks that it's paid up. the agent told me I had to contact the bank 24hrs after making the payment, why should I call, when payment reflects on your system, it makes no sense and I find this appauling that if I never called a debit order would've went off on my account , that's basically *****ing money that not owed to you. highly disappointed in Nedbank