Nedbank bad service

I have a complaint about the service or the lack of it that I have received from Nedbank merchant banking. My business closed October 2014. I instructed Nedband Merchant banking to close my account and fetch the merchant machine before 20:00 on 31 October 2014 as everything had to go into storrage. They did not pitched up at all...infact weeks later they called to enquire and I told them its in storage now. They expecting me to go look for it. Anyway I agreed to find it but they never called back again. I have also requested from them my statements for all the months of 2013 and 2014 as they did not provide me with any statements as usual. No correspondence till now. I even tried following it up after that but with no success. I have recently discovered that Nedbank merchants are now continuesly billing me and deducting money from my Nedbank account for sumthing that is non existing. I am very unhappy as I feel this very unfair, unprofessional and ********* to do that. I have cancelled my services and closed my business end October 2014. All fees that was deducted after that I want to be paid back into my account with interest. This is really dragging too long now